Melee 5 soldiers
Complete the game with less than 13% of items
Complete the three challenge packs in the Proving Grounds
Level up to experience level 50
Turn on your flashlight
Knock back enemies 1000 meters total with melee attacks
Kill 200 soldiers with a gun emplacement
Unlock the entire game map
Collect all the missile packs
Collect all passkeys
Collect all the grenade packs
Punt 20 Bombas
Collect all the gold bars
Collect all the foam canisters
Complete the Omega Armor
Defeat a Spidertank by drowning it
Defeat a Devastator with a foam grenade
Defeat an XOS-1 Soldier with the Inertial Element
Run 10 kilometers total in hyperspeed
Take 20 rides on the mine cart
Rescue Claire
Do a triple jump
Get 50 headshots
Level up to experience level 10
Do 5 consecutive headshots without reloading or taking damage
Perform each type of melee attack: Dropkick, Hanging Takedown, Drop-down Takedown, Double Takedown
Kill an enemy with the Hookshot.
Complete the final fight in less than 1 minute 30 seconds.
Complete the game at 100% in under 2 hours on any difficulty
Complete the game at 100% in under 3 hours on Insane
Complete the game at 4% with only the Flashlight, Backpack, Grenade, Foam, and Missile
Complete the game by abandoning Claire to her fate
Complete the game with 8 Health Packs, 19 Grenade Packs, 20 Foam Packs and 9 Missile Packs
Get 100 soldiers to scream
Destroy the helicopter attacking the vice president
Kill a soldier with a Bomba
Make it from one end of the lake to the other in hyperspeed
Complete the game on any difficulty setting
Complete the game with 100% of the items
