Moving Controls
The analog stick allows the character to move. The "Z" button allows the character to jump. "A" transform the character into vehicle mode, allowing for quicker travel. Pressing "A" in vehicle mode will transform the character into robot mode. "B" changes the character into vehicle mode and back into beast mode. The directional pad and L have no functions.
Fighting Controls
The "R" button unleashes an energy blast. It will take some of your energy away when used, so use it sparingly. The yellow "C stick" allows for normal attacks. "C Up" lays a bomb. "C Right" shoots a small gun in robot mode and a high slashing attack in vehicle mode. "C Left" unleashes the character's super move, which is only available in robot mode.
Playable Characters
Here is the full list of playable characters.
Maximals:
Airrazor
Cheetor
Optimus Primal
Rattrap
Tigatron
Predacons:
Black Arachnia
Megatron
Megatron X
Ravage
Starscream
Tarantulas
Terrorsaur
Waspinator