* Game features a 16 player online mode. The game will either find random players from around the world or players whom you've registered a friend code with. WiiSpeak is present, though you can only talk with players you've registered a friend code with.
* All of the game's multiplayer maps are based on single player locations, though updated dramatically. One stage they played was a Medical Facility. Another stage was a Training Complex. In the Training Complex everyone starts the match with a rocket launcher.
* Sega is pondering over whether they should implement an attack that turns the player 180 degrees and quickly attacks a player from behind.