Bravoo Man - Defeat bravoo man in the ancient ruins.
Colonel Red - Rescue yellow by defeating Smash Daisaku.
Crab Attack - Defeat crab force on the underground mine.
Locked and loaded - Begin the game with each weapon.
Not quite Red - Defeat orange on the battleship.
OMG 11 Bosses - Complete the Dice Palace and defeat Black Beat Stepper.
Papaya Dance - Defeat Papaya Dance in the ancient ruins.
Pink - Defeat pinky roader in the ancient ruins.
Golden Silver - Defeat super boss Golden Silver.
Greedy Fly - Defeat black fly.
O Brother - Defeat green.
Complete the game - Play Through the final scene of Gunstar Heroes.