Messed with Emmett's Cleanser.

Crafted a Mind Map of Emmett that Reveals him to be a "Degenerate Criminal."

Rescued Citizen Brown from the Citizen Plus Program.

Collect every Demerit in the game.

Examine every container of contraband in the speakeasy.

Got caught with Einstein.

Got caught making out with Jennifer.

Coax Edna out of the courthouse with the buzzer.

Use the DeLorean parts to enter Hill Valley.

Complete the Time Attack mode in under 25 minutes

Let a Gas Tanker escape without exploding

Kiss a poster in a locker

Kill 100 enemies using objects shot or dropped with G-Lifter