Formula Kart Wii

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Notice to Distribution Creators
We ask distribution authors not to add this game mode to their distributions. Feel free to take individual features, but do not copy the core concept.
Formula Kart Wii
Formula Kart Wii Logo.png
Author: CLF78, Ismy
Type: ISO Patcher, Riivolution
Version: Gamma 1.7.4
Date of latest version: 2023-07-01
Download: Google Drive
Source code: GitHub
Discord server: Formula Kart Wii γ1.7.4 - Spring 2024


Formula Kart Wii is a custom game mode created by CLF78 and Ismy. It changes the lap count to 50, adding random items and a plethora of other changes to make the racing more lively and chaotic. The mod is inspired by Formula One, a car racing championship.


  • Every modder whose work has been included in the project, for their great contribution.
  • Krummers, for helping with the track patches.
  • kHacker35000vr, Melg, Seeky, and stebler, for help and documentation.
  • acaruso, for his code loader.


Gamma 1.6 Online Race
Gamma 1.2 Online Race
Gamma 1 Online Race


Game Variants

Formula Kart Wii currently features two variants of the game mode.

  • To pick a game variant offline, select the corresponding option in the VS Rules menu.
  • To do so online, press the corresponding room start button.
Game Variants
Variant Information
Classic A regular Formula Kart Wii race. No additional rules are present.
Ramp Up The player's speed increases by 1cc every lap, starting at 150cc. On lap 20, Brake Drifting and Fast Falling are enabled.

Room Options

The room host can toggle the following options on or off using dedicated messages.

Room Options
Option Author Information
Always Win Track Vote Star The room host always wins the track vote.
Mirror Mode Nintendo Enables Mirror Mode.
Random Combination CLF78 Gives every player in the room a random character and vehicle combination. The player cannot see the chosen combination until the race begins.
Teams Mode Nintendo Enables teams mode.
Vehicle Restriction CLF78 Lets the host restrict the type of vehicles that players can use.

Item Changes

Almost all the items have been edited to make the racing experience more chaotic. In addition, several brand new items have been introduced.

Item Edits
Item Feature Author Information
All Items All Items Can Land CLF78, MrBean35000vr Every item (with the exception of the Thunder Cloud, POW Block and Lightning) can land on the floor when dropped and be activated when a racer drives over it. Effects are identical to using the item itself.
Disable Item Poof CLF78 Stops the game from removing items that have been on track for too long, unless their total amount reaches the set limit.
Dynamic Item Sizing CLF78 Items will reflect the status of the player who dropped/fired them. If used while in a Mega Mushroom, they will remain giant, and if used while shocked they will remain tiny. For Bob-ombs and Blue Shells, this also affects their explosion radius. This does not affect the Thunder Cloud.
Instant Item Boxes Anarion, CLF78 Item boxes respawn instantly to allow everyone to get items.
Max Item Limit Modifier CLF78, Ismy Increases the amount of items that can be in play. The new limits can be found here.
Newbie Helper CLF78, Seeky If a player is lapped by first place, they will no longer pull Bananas, Shells, Fake Item Boxes or Bob-ombs. CPUs are unaffected.
Remove Mushroom Bug Vega The Mushroom bug is an intentional game behavior that results in the player receiving a Mushroom as their 16th, 18th and 20th+ item, regardless of position. This code removes said behavior.
Remove Mushroom Item Fallback CLF78, Ismy If too many of an item are in play, the game will try to give the player another item instead of defaulting to a Mushroom. This does not apply to the POW Block and Lightning, though this will grant the player Triple Mushrooms instead of a single one.
Ultimate Item Randomizer CLF78, Ismy Completely randomizes item chances and gives a (weighted) random amount of the chosen item (see here for more info). It also randomizes the items spawned by objects, such as leaf piles, wooden boxes and Goombas. A few rules remain to maintain gameplay balance:
  • Blue Shell, Lightning and POW Block timers are still respected.
  • CPUs cannot pull Feathers and cannot pull Blue Shells and POW Blocks when in first place since they are not able to use them correctly.
  • Lightnings, POW Blocks and Thunder Clouds cannot be dropped by objects.
Green Shell.png
Green Shell
Green Shell Speed Modifier davidevgen Green Shells move at 2× speed.
Shells Never Break CLF78 Green and Red Shells will not break until they hit a player, an object or another item. Red Shells will still break on walls if actively chasing a player.
Red Shell.png
Red Shell
Red Shell Targeting Modifier CLF78 The Red Shells' targeting logic has been altered in the following ways:
  • Shells will only target the player one position ahead of the shooter, rather than targeting players in higher positions indiscriminately.
  • Shells will not skip a player if they are getting hit by another item.
  • Shells thrown from first place will not target anyone.
Banana Damage Modifier Skullface Bananas make the player spin for a longer amount of time, slowing them to almost a halt.
No Item Use Stun CLF78 Running into a Mushroom, Golden Mushroom or Star while getting hit will still apply their effect.
Golden Mushroom.png
Golden Mushroom
Motion Sensor Bombs Hamster35000vr Bob-ombs only explode when someone gets close to them.
Blue Shell.png
Blue Shell
Blue Shell Speed Modifier mdmwii Blue Shells' traveling speed has been increased to 4×. However, they can still be dodged with Mushrooms.
Draggable Blue Shells Luis Blue Shells can be held behind you like Red Shells. They will explode on contact, but not hurt the player. They can be used to protect against other items being shot from behind, but if the player gets wheelie-bumped while holding a Blue Shell behind, it will fall on the ground.
Objects Ignore Lightning Damage CLF78, Ismy Track objects such as Goombas, penguins and crabs are no longer affected by Lightning.
Shock Squishing CLF78 If a shrunk player and a normal player bump into each other, the former will be squished (but will not lose their item and will not experience hit-stun).
Mega Mushroom.png
Mega Mushroom
Mega Flips Everything JoshuaMK Trucks and Chain Chomps will flip over if hit with a Mega Mushroom (instead of stopping the player).
Mega Mushroom Size Modifier CLF78, Ismy, Palapeli The player's size when in a Mega Mushroom is 1.5× the original (and capped to allow bigger vehicles to fit certain areas). The camera FOV is slightly increased to maintain visibility.
Feather Item CLF78, stebler The Feather, which replaces the Blooper, lets you trick off the ground and jump high in the air. Additional features include disabling invisible walls and fast falling (both while airborne).
POW Block.png
POW Block
Fast POW mdmwii The POW Block hits at the second strike instead of the third one to keep players on their toes.
No POW Delay Ro If a POW Block is used while another is about to strike, the strikes will be reset. This can be used to confuse players.
POW Yourself in 1st CLF78 If a player uses a POW Block while in first place, they will hit themselves.
Thunder Cloud.png
Thunder Cloud
Fix Thunder Cloud Glitch CLF78 The bug that causes the Thunder Cloud effect to remain if the cloud disappears is fixed.
Impervious Thunder Cloud CLF78 Thunder Clouds no longer disappear when using a power item or entering a cannon.
Mega/Bullet Thunder Cloud acaruso, CLF78 Instead of shrinking the player, the Thunder Cloud gives a Mega Mushroom effect (or a Bullet Bill effect if the player is lapped).
Bullet Bill.png
Bullet Bill
Bullet Bill Cannon Speed Modifier CLF78, Ismy Players in a Bullet Bill move faster in cannons than regular players.
Bullet Bill Duration Modifier CLF78 Overtaking too many players with a Bullet Bill no longer causes it to end early. This does not apply to first place.
Bullet Bill Speed Modifier CLF78, davidevgen Bullet Bills move at 220 km/h, making them the most valuable item in order to catch up to other players.
No Bullet Bill Icon Anarion Makes the Bullet Bill icon in the roulette disappear after using the item, allowing players to pick up and use other items during the Bullet Bill's effect.

Item Data

Item amounts are determined separately from item pulls. The chances of pulling a triple item in a distribution is the pulling chance × the amount chance. Objects will always spawn a single item.

Item Chances
Item Normal Distribution Newbie Helper Distribution Object Distribution
Pulling Chance Single Item Chance Double Item Chance Triple Item Chance Pulling Chance Single Item Chance Double Item Chance Triple Item Chance Pulling Chance
Green Shell 2/19 [1] 34% 33% 33% 1/12
Red Shell 2/19 [1] 34% 33% 33% 1/12
Banana 2/19 [1] 34% 33% 33% 1/12
Fake Item Box 2/19 [1] 34% 33% 33% 1/12
Mushroom 1/19 34% 33% 33% 1/9 100% 1/12
Bob-omb 1/19 95% 4% 1% 1/12
Blue Shell 1/19 95% 4% 1% 1/9 85% 10% 5% 1/12
Lightning 1/19 95% 4% 1% 1/9 95% 4% 1%
Star 1/19 85% 10% 5% 1/9 34% 33% 33% 1/12
Golden Mushroom 1/19 95% 4% 1% 1/9 85% 10% 5% 1/12
Mega Mushroom 1/19 85% 10% 5% 1/9 34% 33% 33% 1/12
Feather 1/19 34% 33% 33% 1/12
POW Block 1/19 95% 4% 1% 1/9 95% 4% 1%
Thunder Cloud 1/19 100% 1/9 100%
Bullet Bill 1/19 95% 4% 1% 1/9 95% 4% 1% 1/12
Item Limits
Item New Original
Banana 27 16
Fake Item Box 27 6
Green Shell 20 12
Red Shell 20 8
Mushroom 12 12
Blue Shell 7 1
Bob-omb 7 3
Bullet Bill 7 1
Feather 7 1
Golden Mushroom 7 2
Mega Mushroom 7 2
Star 7 3
Thunder Cloud 7 1
Lightning 1 1
POW Block 1 1
Total 164 70

Vehicle Changes

Some vehicle characteristics have been altered to promote more vehicle variety.

Vehicle Changes
Feature Author Information
Hybrid Drift Ismy Replaces the Automatic Drift option with Hybrid Drift, which combines automatic and manual drift.
Inside Drifting Bikes Seeky All bikes are inside drift.
Super Miniturbo Threshold/Duration Modifier CLF78, Ismy Super mini-turbos take half the time to charge and last 1.5× longer.

Gameplay Changes

Several gameplay elements have been altered to provide more entertainment and/or make gameplay fairer.

Gameplay Changes
Feature Author Information
Disable Horizontal Wall Glitch stebler Fixes the horizontal wall glitch.
Disable Wallriding CLF78 Fixes wallriding to prevent abuse.
No Invincibility Frames CLF78, Ismy Removes the brief period of invincibility after being hit by an item or landing from a respawn, allowing players to be hit again.
No Team Invincibility CLF78, Geeh, Ismy, Nameless Enables friendly fire in teams mode.
Points Table Modifier CLF78 Finishing points are multiplied by the amount of players in the race.
Respawn Helper davidevgen, CLF78, Ismy If a player falls off the track while lapped, they will respawn immediately.
Starting Lap Modifier [WP]Bully, CLF78, Ismy, Melg, Palapeli The race lasts 50 laps on every track. The lap counter and Lakitu show the correct current lap and total laps.
Ultra UnCut Chadderz, MrBean35000vr Fixes the Start Line Bug that causes many Ultra Shortcuts.

Online Gameplay Changes

Online Changes
Feature Author Information
30 Seconds Time Limit Modifier CLF78 The 30 second rule has been changed to three minutes, to allow more players to finish the race.
Accurate Explosion Damage CLF78, MrBean35000vr Prevents the game from applying explosion damage to players that were not hit. It also swaps the spin-out damage with the explosion one.
Accurate Finish Times/Positions CLF78 The finish times of players that do not reach the finish line is more realistic (this also affects CPUs offline). Additionally, the order of disconnected players is maintained.
Change Character Between Wi-Fi Races MrBean35000vr When in online play, the player's character, vehicle, and drift mode choice may be changed between races by pressing + on the Wii Remote (or Start on the GCN Controller) when on the VR screen. This simply takes the player back to the character select menu and then returns them to the vote when they have reselected. If the time limit expires, the currently selected options are taken.
Custom Server Support Leseratte, Wiimm Support to play on Wiimmfi has been added as a replacement to Nintendo WFC. This comes with a custom region so that regional/continental races work.
Force CC XeR Forces 150cc in online races (or Mirror, if the relevant room option is enabled).
Friend Room Race Count Modifier MrBean35000vr Changes the amount of VS races in friend rooms to one.
Instant Disconnect and Don't Lose VR When Disconnecting [WP]Bully, CLF78 Allows the player to disconnect from a room at any time without losing VR. The button combinations to do so are as follows:
  • Wii Wheel/Nunchuk: B, 1, 2, +
  • GCN Controller: L, R, A, START
  • Classic Controller: L, R, A, +
Remove Worldwide Button Chadderz Removes the Worldwide button in the online menu completely.
Time Limit Modifier Chadderz, CLF78 The five minute time limit has been extended to 60 minutes to accommodate for the longer races.

Track-Specific Changes

The following features target track-specific gameplay elements in order to enhance gameplay. These are implemented in the form of cheat codes and file patches, so My Stuff support is retained (to an extent).

Track-Specific Changes
Cup Track Changes
All A full list of changes can be found here.
  • Added additional respawn points where necessary.
  • Added out of bounds areas to prevent players missing key checkpoints with the Feather.
  • Fixed finish line respawns.
  • Modified Bullet Bill drop-offs to accommodate the faster Bullet Bill speed.
Mushroom Cup.png
Mushroom Cup
Toad's Factory
Flower Cup.png
Flower Cup
Coconut Mall
DK Summit Changed key checkpoint five to four.
Star Cup.png
Star Cup
Maple Treeway All leaf piles have a 33% chance of spitting an item.
Grumble Volcano
  • Bullet Bills take the right path in the cave by default.
  • Sinking rocks and geysers are adjusted to the lap count.
  • The Ultra Shortcut and Rock Hop rocks sink instantly to prevent bugs/excessive cutting.
Special Cup.png
Special Cup
Dry Dry Ruins
  • Pillar and sand pile timings are adjusted to the lap count.
  • Split item route at the ruins exit into three.
Shell Cup.png
Shell Cup
GCN Peach Beach Made item routes less bumpy.
DS Yoshi Falls Bullet Bills take the waterfall route by default.
SNES Ghost Valley 2 Falling block timings are adjusted to the lap count.
Banana Cup.png
Banana Cup
GBA Shy Guy Beach Edited item routes near the tiny islands.
DS Delfino Square Wooden boxes respawn faster.
Lightning Cup.png
Lightning Cup
N64 Bowser's Castle Removed split checkpoints at the end.

Other Features

Addiditonal quality of life and graphical enhancements are present to further polish the game mode.

Other Features
Feature Author Information
30 FPS CLF78 Locks the game at 30 frames per second. This feature can be enabled/disabled at will, as it is meant for Dolphin users.
Automatic BRSAR Patching Elias_ The revo_kart.brsar file is automatically patched to prevent music from cutting off mid-race.
Credits Button CLF78 Replaces the Mario Kart Channel with the credits.
Default Drift Type Modifier CLF78 Makes the game always set the drift choice to Manual when booted. If the player changes their drift choice mid-session, it will still be saved correctly.
Disable Character Voices Melg Completely mutes characters. This feature can be enabled/disabled at will.
Disable Multi Channel BRSTMs CLF78 Prevents music from cutting off if the relevant BRSTM channel is missing.
Disable Staff Ghosts Lookup CLF78 Prevents the game from looking up staff ghosts to reduce loading times.
Don't Hide Position After Race MrBean35000vr Prevents the game from hiding the player's position once the race is over.
Faster Menu Navigation east Menus are much faster to navigate through. This feature can be enabled/disabled at will.
Final Lap Music Trigger Modifier acaruso, CLF78 Final lap music triggers on lap 45. For the final lap, the jingle plays again and then the music is slightly faster.
Force Battle Glitch XeR This code extends the view of character tags without the need to play on Battle Mode. This feature can be enabled/disabled at will.
Force VS Menu CLF78, Palapeli Forces the offline menus to VS Race.
License Unlocker acaruso Unlocks every character and cup without affecting the savegame.
Mii Heads on Minimap JoshuaMK When playing online, character minimap icons will be replaced by the players' Mii head. This feature can be enabled/disabled at will.
My Stuff Folder Allows users to replace certain files with their own, allowing for custom textures, among other things. Players can choose between the CTGP and the FKW folder, and can also choose to replace Music only or everything.

NOTE: Do not replace 'Common_X.szs' or the game will crash.

No Background Music CosmoCortney Mutes all BRSTMs. This feature can be enabled/disabled at will.
Offline Race Count Modifier CLF78, JoshuaMK Lets the player pick an amount of races between one and 16.
Score Screen Improvements CLF78, Melg Various improvements were applied to the score screen:
Show Quit Confirmation Screen Everywhere CLF78 Adds the quit confirmation screen from GP mode to single player VS races.
Show Time Difference Melg Makes the game show how far ahead or behind the player is from others (like in Time Trials). This feature can be enabled/disabled at will, and it can be set to the player ahead or to the one in first. If the player crosses the line in first place, it will show their distance from second once they cross the line.

Note: This feature does not work in split-screen; therefore, it is disabled when using it.

Show Voting Timer CLF78 The countdown timer on the Wi-Fi voting screen is always shown.
Silent Controller Changing [WP]Bully Removes the controller change box, allowing the player to change controllers anytime.
Speedometer CLF78, stebler Adds a speedometer in the lower right-hand corner of the screen.

Note: This feature does not work in split-screen; therefore, it is disabled when using it.

Version Check CLF78, Seeky Prevents players with a different mod version than the host's from joining their room.

Version History

Alpha 0.7 – Beta 1.10

Gamma 1 – Gamma 1.7.4

Version Date of release Information
Gamma 1 2020-11-20
  • Added BRRES Anti-flicker.
  • Added Disable Item Poof.
  • Added No Character Voices option.
  • Added Track Patches.
  • Modified time limit to 60 minutes instead of removing it.
  • Improved random item logic.
  • Fixed Wiimmfi patch.
Gamma 1.0.1 2020-12-05
  • Added No Team Invincibility.
  • Added No Team Colors.
Gamma 1.1 2020-12-18
  • Added Codehandler Annihilator.
  • Added Duplicated Item Auto-Trail.
  • Improved final lap music.
  • Updated some bugged item-object interactions.
  • Fixed Bullet Bill Speed Modifier.
  • Fixed Grumble Volcano freeze.
  • Fixed POW Block/Lightning dropping bug.
  • Fixed random freezes on Koopa Cape, Maple Treeway and a few other tracks.
  • Fixed Newbie Helper for offline mode.
  • Optimized game mode contents and several codes.
Gamma 1.2 2020-12-30
  • Added Bullet Bill Cannon Speed Modifier.
  • Fixed Final Lap Music Modifier.
  • Improved All Items Can Land.
  • Improved lap counter.
  • Improved My Stuff option.
  • Improved No Invincibility Frames.
  • Replaced No Music code.
  • Other minor improvements.
Gamma 1.3 2021-01-12
  • Added Show Time Difference option.
  • Added Remove Mushroom When No Item Available.
  • Revamped lap counting logic.
  • Improved Always Win Track Vote.
  • Improved Disable Item Poof.
  • Improved Ground Golden Mushroom Mod.
  • Changed leaf piles item probability to 33%.
  • Other minor improvements.
Gamma 1.3.1 2021-01-14
  • Improved Custom Lap Counter.
  • Fixed split-screen crash.
  • Adjusted CPU finishing time calculation.
Gamma 1.4 2021-02-25
  • Added Ramp Up and Item Rain.
  • Added Impervious Thunder Cloud.
  • Added Offline Race Count Modifier.
  • Added Room Message Settings.
  • Added Speedometer.
  • Improved finishing time accuracy for CPUs.
  • Made Thunder Clouds exchangeable between teammates.
  • Disabled Mii Heads on Minimap when offline.
  • Revamped mod loading method.
  • Improved Time Difference.
  • Fixed Blue Shell Speed Modifier for NTSC-U.
  • Fixed geyser and mole collision.
  • Fixed item alert not appearing.
  • Fixed track name disappearing on voting screen.
  • Removed Disable Battle Mode Button.
Gamma 1.5 2021-03-18
  • Added Vehicle Restriction option.
  • Replaced Item Rain with Sabotage.
  • Decreased Fast Falling and Brake Drifting lap threshold from 25 to 20.
Gamma 1.6 2021-08-02
Gamma 1.7 2022-09-02 Update by CLF78, Ismy and Krummers:
  • Added track fixes on all tracks.
  • Added Random Combination room option.
  • Added Hybrid Drift.
  • Added Bullet Bill Thunder Cloud.
  • Added Interpolation Fix.
  • Added Always Get Respawn Boost If Lapped.
  • Added Patch.szs.
  • Added 30 FPS as a Riivolution option.
  • Fixed and optimized Shock Squishing.
  • Fixed drift speed in Ramp Up.
  • Fixed explosion size hitboxes.
  • Fixed offline menu softlock.
  • Fixed Thunder Cloud off-road bug.
  • Fixed Ramp Up in Multiplayer mode.
  • Fixed NTSC-J and NTSC-K crashes.
  • Adjusted Red Shell speed in Ramp Up.
  • Changed Feather item probabilities.
  • Changed Mega Mushroom Multiplier.
  • Changed a few option names.
  • Increased Blue Shell and Thunder Cloud limit.
  • Updated Credits.
  • Updated BMGs.
  • Imported improved loader from Hide and Seek.
  • Improved Item Auto-Trail.
  • Improved Lap Modifier.
  • Improved No Invincibility Frames.
  • Optimized Inside Drift Bikes.
  • Rewrote and improved Item Randomizer code.
  • Rewrote Time Difference code.
  • Removed Auto Strap Screen Skip.
  • Removed Feather from Newbie Helper item probabilities.
  • Removed Size Modifier from Thunder Cloud.
Gamma 1.7.1 2022-09-21 Fixed Miis causing bugs and crashes.
Gamma 1.7.2 2022-10-06
Gamma 1.7.3 2022-12-18
  • Fixed track patches unloading improperly.
  • Added start on Feather Cut Indicators.
Gamma 1.7.4 2023-07-01
  • Remade item randomizer.
  • Changed Triple Mushroom probability from Newbie Helper to 100%.
  • Decreased Mega Mushroom cap size from 3.0 to 2.5.
  • Fixed German chat message.
  • Fixed Coconut Mall shortcut.
  • Added two key checkpoints on DK Summit to fix Feather shortcut.
  • Extended no Bullet Bill drop-off point on Rainbow Road.
  • Fixed N64 Bowser's Castle:
    • Remade all out of bounds.
    • Edited checkpoints on the last turn and before the lava room.
    • Added respawn points on the spiral.
  • Fixed more mistakes in the Wiimmfi code.

Known Bugs

  • Although officially supported, split-screen mode compatibility is poor and prone to bugs/crashing.
    • Random Combination crashes when used in split-screen mode.
  • Bob-ombs generated by objects offline will not blow up unless hit. They will also slide on slanted surfaces, although very slowly.
  • Memory-intensive tracks may cause items and objects to lose their collision or disappear altogether.
  • Players who skip key checkpoints online using the Feather will cause their position to desync.
  • The game may enter an infinite loop and crash when too many items are on track. This only seems to occur offline.
  • Two players can hold the Lightning and POW Block item at the same time.
By the same author: CLF78
By the same author: Ismy

Game Mode:
Formula Kart Wii

Custom Track:

Texture Hack:
SNES Mario Circuit π

Other Mods:
Buffed Sprinter ModHybrid Drift

  1. 1.0 1.1 1.2 1.3 Will be reduced to 1/19 when further items are implemented.