Survive a banzai attack. (Solo only)

Win a Chat Room Match

Finish Arcade Mode with a Mortal Kombat Character

Perform a Free-Fall Transition

Unlock new weapons by hitting a Convoy

Work with a Buddy to subvert a mission offered by a faction

Collect 50% of the prize bubbles on the story levels

Save a Buddy from captivity

Post a comment on a community level

Complete all levels in The Wedding

Collect 1,000,000 points over all levels you have played

Heart 5 community levels

Get a 20X Multiplier