A character can try to rush an opponent, knocking him backwards on his back, as an unarmed melee attack. This attack consumes two attack actions.
Making a Bull Rush
Make an unarmed melee touch attack against the target.
If the character’s attack succeeds, she rushes the target.
Being Bull Rushed (Prone)
A bull rushed character takes normal unarmed strike damage from the her attacker, is pushed back 5 feet and is prone. Standing up from a prone position is a move action.
Prerequisite: Combat Martial Arts