Complete the tutorial levels
Save the scientist held in floor 2-1
Find Diana
Put a Fake Totem
Kill 100 elite enemies
Kill 1000 enemies
Grab an Energy Drainer
Reach level 30 with a character
Kill PAL 9000
Watch the "good ending"
Complete floor 8-4 using only the Amazing Throw
Reach chapter 7
Complete floor 8-5 with Laura without getting hit
Complete floor 9-1 with Diana without grabbing bonuses
Complete floor 9-2 with Karen in less than 4 minutes