It's a 2D game, and theres only a small arena to fight on, yet it's bigger than any other Wii game, including CoD, which has a huge campaign, lots of models and textures, and much more...
Lol the game is huge! IS in 3d and have a lot of content.
Videos is mostly what take most space. Removing them made the game fit on a dvd5.
Gee, I need to find that special +6GB DVD-RW.
Oh, I remembered my Wii has a special malfunctioning disk reader
Don't use DVD-RW for games, they tend to be more problematic than regular DVD-R
Why don't you load games from an external usb HDD? Running games from external hdd is like the biggest Wii advantage