Layout Biff and escape the speakeasy.

Jumped into the Decycling Bin.

Collect every Demerit in the game.

Use the spray can to paint Marty's band name in the alley.

Coax Edna out of the courthouse with the buzzer.

Reach the lobby.

Buy all of the weapons.

Kill 50 enemies in a row using melee without taking damage.

Absorb 500 shots with the Quantum Deflector.

Use the DeLorean parts to enter Hill Valley.

Defeat the Loki Master.

Get 10 critters on screen at once.

Have 100,000 bolts banked.