Slot
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Overview
Slots are the places that Nintendo tracks or custom tracks run on. Mario Kart Wii has 32 track slots organized into eight cups with four tracks each. The slots are numbered from 1.1 (first cup, first track) up to 8.4 (eighth cup, fourth track). Nearly all slots have special features.
The arena slots are arranged into two cups with five arenas each.
| Stages | Slot | Arena | Music ID | Special Slot ID | Special value |
|---|---|---|---|---|---|
 Wii Stages |
1.1 | Block Plaza | 0xB7 | 0x21 | 15,000 |
| 1.2 | Delfino Pier | 0xB5 | 0x20 | 24,000 | |
| 1.3 | Funky Stadium | 0xB9 | 0x23 | 30,000 | |
| 1.4 | Chain Chomp Wheel | 0xBB | 0x22 | 15,000 | |
| 1.5 | Thwomp Desert | 0xBD | 0x24 | 12,000 | |
 Retro Stages |
2.1 | SNES Battle Course 4 | 0xC3 | 0x27 | 20,000 |
| 2.2 | GBA Battle Course 3 | 0xC5 | 0x28 | 20,000 | |
| 2.3 | N64 Skyscraper | 0xC7 | 0x29 | 20,000 | |
| 2.4 | GCN Cookie Land | 0xBF | 0x25 | 10,000 | |
| 2.5 | DS Twilight House | 0xC1 | 0x26 | 12,000 |
The special value is defined in a table at 808c9a58 (PAL). Its meaning is unknown. It may be similar to special slot effects in VS mode.
There are five other slots reserved for Galaxy Colosseum and the winning, losing and drawing scenes.
| Track | Music ID | Special Slot ID |
|---|---|---|
| Galaxy Colosseum | 0xC9 | 0x36 |
| winningrun_demo | — | 0x37 |
| loser_demo | — | 0x38 |
| draw_demo | — | 0x39 |
| ending_demo | 0x75 | 0x3A |
Special Slots
Most tracks run on all slots, with exceptions of slots 4.2, 6.1 and 6.2; additionally, some tracks only run at slots 3.1, 5.3 and 7.1. Here are the rules for these special slots:
- Tracks can only run on slot 4.2 if they have at least one instance of the objects kart_truck and car_body, and have materials with specific names in the course_model.brres. (Look at the slot information for more.)
- Tracks can only run on slot 6.1 if the ice object is present. Furthermore, this object is necessary to activate the icy water fall boundary, which only works at this slot.
- Tracks can only run on slot 6.2 if the object HeyhoShipGBA is used. Objects HeyhoShipGBA and HeyhoBallGBA only work at this slot.
- Tracks using objects sunDS, FireSnake, begoman_spike, or pylon01 only work on slots 3.1, 4.2, 6.2, 7.1, and Galaxy Colosseum.
- The object poihana does not function on slot 5.1 if neither psea nor venice_nami are also present.
- Tracks using objects obakeblockSFCc, obakeblock2SFCc and obakeblock3SFCc only work on slot 5.3 if these objects are intended with fall animations. They are not scalable on this slot. However, on all other slots, these objects can be scaled but they are unsolid and lack any animations. Wiimms SZS Tools uses them to make item and enemy routes visible during gameplay or to mark positions.
- All other slots are different for KCL Sound Triggers, particular sounds or GFX for KCL flags or what effects they give to tracks.
- The battle slots each have different coin limits and different coin respawn layouts. An exact table of all the coin layouts for the battle tracks can be found here.
Slot Expansion
It is possible to expand the track selection list to include more slots. It should be noted that new slots have no unique slot features, but can use special slot effects and music slots.
Unique and Special Slot Features
Slot 1.1 (Luigi Circuit)
Unique
- An audience ambience plays in the background indefinitely if the KCL Sound Trigger is not used.
Special
- The object sound_audience will properly play SFX on this slot, among a few other slots.
Music
- Slot 2.1 uses the same background music files.
Slot 1.2 (Moo Moo Meadows)
Unique
- During the opening cameras, sounds of cows and bells can be heard.
Slot 1.3 (Mushroom Gorge)
Unique
- Wind ambience plays in the background indefinitely if the KCL Sound Trigger is not used.
Special
- There is always a white fog in the middle of the screen and other random clouds of fog throughout the course. However, the fog on the screen can be replaced with an AREA that uses spores.
- Sand off-road is dark green.
- Jump Pad with variant 4 has SFX, but the SFX works in the kinoko_bend object KCL, regardless of slots.
Slot 1.4 (Toad's Factory)
Unique
- An audience ambience plays in the background indefinitely if the KCL Sound Trigger is not used.
- The KCL Sound Trigger can be used to trigger alternate channels in a multi-channel BRSTM among other sound effects. This can also cause problems with BRSTMs that do not have multiple channels.
Special
- The object sound_audience will properly play SFX on this slot, among a few other slots.
- The object Crane will have SFX.
Slot 2.1 (Mario Circuit)
Special
- Sand off-road is a lighter color.
Music
- Slot 1.1 uses the same background music files.
Slot 2.2 (Coconut Mall)
Special
- The objects CarA1, CarA2 and CarA3 have SFX.
- Audience commotion can be heard in the opening camera sequence.
Slot 2.3 (DK Summit)
Unique
- An audience ambience plays in the background indefinitely if the KCL Sound Trigger is not used.
Special
- An alternative first-stage drift effect (rk_hangOnX_SB instead of rk_hangOnX) and trick effect (rk_jumpSeikou_SB and rk_jumpSeikouS_SB instead of rk_jumpSeikou and rk_jumpSeikouS) are used.
- The cannon sound and little wooden gate sounds can be heard when encountered.
- After 50 seconds, the posteffect.bfg entry slowly changes from 0 to 1.
- AREA type 0x02 does not work properly on this slot.
- The object sound_audience will properly play SFX on this slot, among a few other slots.
- The object EnvSnow only works on this slot.
Slot 2.4 (Wario's Gold Mine)
Unique
- The KCL Sound Trigger can be used to trigger alternate channels in a multi-channel BRSTM among other sound effects. This can also cause problems with BRSTMs that do not have multiple channels.
Slot 3.1 (Daisy Circuit)
Special
- The object cruiserR only works properly on this slot; it might work in other slots, but not the way it is supposed to.
- There are some tracks that do not work on this slot (such as tracks based on Dry Dry Ruins). It is unknown why.
- Objects sunDS, FireSnake, begoman_spike, and pylon01 work on this slot.
- The object sound_audience will properly play SFX on this slot, among a few other slots.
- Gravel Weak Off-road is orange.
Slot 3.2 (Koopa Cape)
Unique
- The KCL Sound Trigger can be used to trigger alternate channels in a multi-channel BRSTM among other sound effects. This can also cause problems with BRSTMs that do not have multiple channels.
Slot 3.3 (Maple Treeway)
Special
- Sounds of the cannon can be heard.
- Grass off-road is olive-colored.
Slot 3.4 (Grumble Volcano)
Special
- Objects VolcanoBall1 and VolcanoPiece have SFX.
- Gravel Weak Off-road does not include the rock particles.
- Dirt Weak Off-road is red.
Slot 4.1 (Dry Dry Ruins)
Unique
- The KCL Sound Trigger can be used to trigger alternate channels in a multi-channel BRSTM among other sound effects. This can also cause problems with BRSTMs that do not have multiple channels.
- The object sanbo has SFX.
Special
- Sand off-road is a darker color (#e7b857) outside. When in AREA Type 0x01, the sand gets a green tint (#cfb755).
Slot 4.2 (Moonview Highway)
Unique
- The KCL Sound Trigger can be used to trigger alternate channels in a multi-channel BRSTM among other sound effects. This can also cause problems with BRSTMs that do not have multiple channels.
Special
- Tracks work only if there is at least one instance of a normal car and a truck.
- Materials under the MDL0 must have the following names (in any order):
- Goal_Merg
- Iwa
- Iwa_alfa
- Nuki_Ryoumen
- WallMerg00
- moon_kabe0000
- moon_road00
- road
- road01
- road02
- road03
- siba00
- Getting hit by anything grants the driver invincibility to cars and trucks for a short duration of time.
- The wheels of cars, trucks and bomb cars only animate on this slot.
- Objects sunDS, FireSnake, begoman_spike, and pylon01 work on this slot.
Slot 4.3 (Bowser's Castle)
Unique
- The KCL Sound Trigger can be used to trigger alternate channels in a multi-channel BRSTM among other sound effects. This can also cause problems with BRSTMs that do not have multiple channels.
Special
- Sounds of the cannon can be heard, although the character does not speak.
- Grass off-road is brown.
- Sand off-road is black.
Slot 4.4 (Rainbow Road)
Unique
- The KCL Sound Trigger for gate sounds is present.
Special
- Sounds of the cannon can be heard.
- The camera has a different angle while taking a cannon.
- KCL flags 0x00F7 and 0x00B6 have a special sound when drifting.
- KCL flag 0x009E has a special sound on collision.
- Hitting the backside of something drivable with a Bullet Bill results in a fall boundary. Therefore, height and settings of the item routes have to be determined very accurately.
Slot 5.1 (GCN Peach Beach)
Unique
- A splash can be heard if a poihana object steps in the water of Psea or venice_nami. The object crashes if neither of the water objects is present.
Special
- Grass off-road is light-green.
Slot 5.2 (DS Yoshi Falls)
Special
- Grass off-road is a darker color.
Unique
- A bird ambience plays in the background indefinitely.
Slot 5.3 (SNES Ghost Valley 2)
Special
- The original track has 645 global objects, 602 of which are obake blocks. The average number of objects in all other tracks is 73; this is the only slot that supports that many objects. Using the track in other slots would cause objects to malfunction, e.g. invisible item boxes.
- Objects obakeblockSFCc, obakeblock2SFCc and obakeblock3SFCc are solid and animated only on this slot, but they are not scalable; on other slots they are scalable but they are unsolid and not animated.
Slot 5.4 (N64 Mario Raceway)
Unique
- An audience ambience plays in the background indefinitely if the KCL Sound Trigger is not used.
Special
- Sand off-road has a lighter color (lighter than Mario Circuit).
- The object sound_audience will properly play SFX on this slot, among a few other slots.
Slot 6.1 (N64 Sherbet Land)
Unique
- The KCL Sound Trigger can be used to play an icy cave ambience.
- Objects penguin_s and penguin_m have SFX.
Special
- Only courses including ice run at this slot.
Slot 6.2 (GBA Shy Guy Beach)
Unique
- A marine ambience with seagulls plays in the background indefinitely.
Special
- Only courses including the object HeyhoShipGBA can run at this slot and those tracks do not work on other slots.
- Objects sunDS, FireSnake, begoman_spike, and pylon01 work on this slot.
- The camera changes to a bird's eye view below Y coordinate 3000.
Slot 6.3 (DS Delfino Square)
Unique
- A Pianta audience ambience plays in the background indefinitely if the KCL Sound Trigger is not used.
Special
- Grass off-road is yellowish-green.
Slot 6.4 (GCN Waluigi Stadium)
Unique
- An audience ambience plays in the background right away, but only for a few seconds.
Special
- Applauses for each trick can be heard.
- The GFX color of Mud off-road is gray.
Slot 7.1 (DS Desert Hills)
Special
- Objects sunDS, FireSnake, begoman_spike, and pylon01 work on this slot.
- The object sanbo has SFX.
Slot 7.2 (GBA Bowser Castle 3)
Special
- A thunderstorm ambience plays in the background right away, but only for a few seconds.
- Sand off-road is red.
Slot 7.3 (N64 DK's Jungle Parkway)
Unique
- A jungle ambience plays in the background indefinitely if the KCL Sound Trigger is not used.
Special
- KCL flag 0x0020 has dirt GFX.
Slot 7.4 (GCN Mario Circuit)
Unique
- During the opening cameras, sounds of a Chain Chomp can be heard.
Slot 8.1 (SNES Mario Circuit 3)
Special
- Sand off-road is a lighter color (darker than Mario Circuit).
Slot 8.2 (DS Peach Gardens)
Unique
- During the opening cameras, sounds of Chain Chomps can be heard.
- A bird ambience plays in the background indefinitely.
Special
- KCL flag 0x0021 is a lighter color.
Slot 8.3 (GCN DK Mountain)
Unique
- A jungle ambience plays in the background indefinitely if the KCL Sound Trigger is not used.
Special
Slot 8.4 (N64 Bowser's Castle)
Unique
- Random coughs of the Bowser roar and lava environment sounds can be heard.
- The KCL Sound Trigger for the Bowser roar is present.
Battle Slot 1.1 (Block Plaza)
Special
- Objects bblock and VolcanoPiece use 150cc timing settings unlike other battle slots.
Battle Slot 1.2 (Delfino Pier)
Unique
- Range value behaves differently for respawn points on this slot.
Special
- The following objects have SFX: venice_nami, venice_saku and venice_hasi (the bell sound).
Battle Slot 1.3 (Funky Stadium)
Unique
- An audience ambience plays in the background right away, but only for a few seconds.
Special
- It is not possible to burn out or get a start boost.
- Applauses for each trick can be heard.
Battle Slot 1.4 (Chain Chomp Wheel)
Unique
- When casino_roulette is present, the object and some variants of certain KCL flags rotate the players' direction in addition to the normal position rotation. For more information, see Moving Terrain.
Special
- It is not possible to burn out or get a start boost.
Battle Slot 1.5 (Thwomp Desert)
Unique
- SFX is enabled for quicksand, and behavior for this object is slightly different. (s_itembox works properly only on this slot when placed directly on quicksand.)