Complete the game in co-op mode.
Go unharmed for an entire level, without restarting from a checkpoint.
Find all abilities and pick-ups in Rorschach mode.
Knock 100 people over, by throwing other people into them.
Complete the game in Rorschach mode.
Eliminate 20 bad guys in 101 seconds.
Perform 250 finishing moves.
Perform 200 counter attacks.
Complete the game in Nite Owl mode.
Dodge or block 25 incoming attacks.
Find all abilities and pick-ups in Nite Owl mode.
Complete the game in less than 80 minutes, in one session without restarting from a checkpoint.