Get 10 questions wrong in a row (Classic)

Get a question wrong (Classic)

Kill 10 enemies with grenades by aiming while hanging from a ledge

Kill five enemies in a row with a single punch, after softening them up with gunfire

Find all 60 treasures

Find 50 treasures

Find 40 treasures

Find 35 treasures

Kill 30 enemies with the M79

Kill 10 enemies by aiming while hanging from a ledge

Fully upgrade Heller.

Complete the game.