Don't touch the lava in Skelos Badlands

Complete the long glide to Orb in Autumn Plains

Complete Crush's Dungeon without hitting any fodder

Destroy every Roboshark

Charge a Goat in Colossus

ME3: Return to active duty.

Complete Hunter's challenge

ME2: Acquire all trophies

ME2: Survive suicide mission

ME2: Hack a geth collective

ME2: Incinerate the armor of 25 enemies

ME2: Hit 20 different targets with multiple biotic powers to combine the effects

Kill 2,000 enemies in Mass Effect 1, 2 or 3