Kaguedan

Level 9 Annihilator Destroyed all enemies in Level 9.

Rebel Unlocked Loop past the Nuclear Throne.

Ultra Time Reach Level Ultra as any character.

Level 3 Annihilator Destroyed all enemies in Level 3.

Verified Unlock a Golden Weapon for every character.

Frog Slayer Defeat Mom.

Impossible Sit on the Nuclear Throne as headless Chicken.

Blood Blood Blood Reach the Nuclear Throne in under 10 minutes as Plant.

Crystal Smasher Defeat Hyper Crystal.

Everything Hurts Reach the Nuclear Throne with Melting without choosing Rhino Skin or Strong Spirit.

Forget The Old Days Defeat Mom as Rebel.

Techno Killer Defeat the Technomancer.

Level 7 Annihilator Destroyed all enemies in Level 7.

Fish Can Roll Loop as every character.

Science Defeat the Technomancer as Steroids

Thriller Defeat Hyper Crystal as Horror.

Way Of The Chicken Reach 2-1 on Hard Mode as Chicken.

Never Look Back Defeat Captain as Rogue.

Frog Zone Play as Frog.

Go Hard Unlock Hard Mode.

The Struggle Is Over Defeat Captain.

Total Recon Uncovered all secret enemies.

Good Riddance Unlock a Golden Disc Gun or Golden Nuke Launcher.

Unstoppable Reach Level Ultra as Skeleton

Vault Raider Unlock all Crowns as one character.

Ultra Mutant Get 100% of the unlocks.

Power of Ten Completed Level 10 on Normal Mode.

Golden Achiever Completed Level 50 on Normal Mode.

Century Club Completed Level 100 on Normal Mode.

Classic Class Completed playthrough (16 levels) of Classic Version.