How to unlock Level select option? Successfully complete the game two times.
How to unlock Custom option? Just collect a 100% hit head shot status two times in a row.
How to unlock Team Power option? You have to collect two head shots in a row and that’s it.
How to unlock Humans and Creatures option? Your characters must have their weapon fully upgraded in single player mode to get this option unlocked.
How to unlock Defeat Leader option: all team members must have an episode completed with 100% health.