See my playing field post for some of the basics.
There will be three categories in the competition:
NXT only:
This category allows only the electronics from one Lego Mindstorms NXT set to be used, the sole exception being an IR receiver sensor if you wish to control your robot via IR. This places all contestants on a reasonably level playing field, though it will be difficult to make a 3-motor robot perform all the functions (That's why I allow going around the obstacle).
NXT + PF:
This category allows the electronics from one NXT set, IR receiver and/or IR link sensors, and Power Functions electronics consisting of 1 battery box, one receiver, and the number of motors Lego recommends to be used with a battery box (2 XL, 1 XL + 2M, 4M). By giving robots a few extra motors this category makes it much more feasible to perform all the game's functions.
All Lego:
This category allows any and all Lego electronics. Have fun building a complicated machine that can use any number of NXT, RCX and PF motors, not to mention all the other Lego electronics. If you have enough Lego electronics you could build a robot for this category that performs extremely well in the game.
