Xbox PS2
Unlock Fat Island & UFO Mode on Main Menu
Finish the game using normal difficulty and save to unlock the options
Xbox
Right Way
On level 4 when u get passed the desert part don't go up it is the harder way instead go down and go tough the plants and then to china town or whatever that place is called and another thing for china town the red people explode so when u kill them get away from them.
Submitted By christian klotz
Xbox
Boost O Lives
This isn't really a code or a cheat but when your playing and you have zero lives and your about to die push start on the other controller and the 2cd player will come on. Let your other person die and play with the new one. If you don't have a extra controller it wont work or at least no one knows how to yet. This really works good when your on the last level.
Submitted By Dan F