Spend the indicated number of Skill Points to unlock the corresponding cheat option.

Big Headed Clank: 4
Big Headed Ratchet: 8
Mirrored Levels: 12
Weapon Switching: 16
Big Headed Enemies: 20
Super Bloom: 24
Old Timey: 26
Expat Exchange: 28
Bolt Confusion: 32
Pumpkin Heads: 40
Snowman Heads: 45
Kapow: 50
Ratchet Pack: 65
Hardcore Mode: 65