Beat the game without dying once while the other player steals all of your lives.
Stole another players Life
Beat the game in Co-op mode with nobody stealing lives
Beat all the levels
Beat all the levels on Loop 1
Beat all the levels on Loop 2
Beat all the levels on Loop 3
Watch the credits till the end.
Destroy 100 enemies
Destroy 1000 enemies
Destroy 5000 enemies
Destroy 10000 enemies