Have any of you played the Alien Hominid PDA game? It is included with the Gamecube game Alien Hominid and looks like it would make a perfect game for A8. Up to four players can play simultaneously. To clear each stage you have to defeat all the enemies (by jumping on them) and make it to the exit door without falling in water or other traps. There are ladders, boulders you can roll around, etc.
Just in case any programmers are thinking about starting a new project...