This distribution makes use of custom menus to load custom course slots. The cup selection menu is modified with two buttons featuring arrows to the left and right of the main cups. When selected, these buttons cause the current on-screen cup buttons to be replaced with other cups, including custom cups, creating a scrolling menu system. All custom tracks are stored inside custom cups.
This distribution is capable of searching for random players to play custom tracks with who are running Ultra Pack. When running the pack, simply press the Regional / Continental button (which is renamed to "Ultra Pack Worldwide") to search for Ultra Pack players. You can also join your friends who are playing UPWW, and they can join you. Credits to XeR for finding the required values to do this.
When in UPWW mode, picking random will allow the game to select a custom track based on a number provided by the game's RNG system. It can also be triggered by pressing + or Start (depending on your controller), and may be used offline to randomly select a track to play on.
The countdown timer on the Wi-Fi voting screen is always shown now, rather than just when you're about to run out of time. This can give you a better idea of how long you have to make a decision when voting. The time allocated is 30 seconds.
This distribution makes a modification to the race time limit on Wi-Fi. It has been expanded from 5 minutes to 5:40, allowing longer tracks to be entered and played through to completion. The game has another hard limit of 5:56 before it disconnects everyone, so it is impractical to increase the time beyond 5:40, as the time advances even when looking at leaderboards. If 5:40 is reached, the pack forces you past the leaderboards quickly to avoid disconnection.