CG Gallery Mode:
—————-
Highlight New Game, hold Select + L + A

Hard Mode:
———-
Highlight New Game, hold L

Perform these tasks in a level to unlock Zero’s other forms:
Proto Form – Complete the game
Energy Form – Grab 25 Life Capsules
Rise Form – Kill 10 enemies with the Z-Saber
Defense Form – Kill 20 enemies with the Shield Boomerang
Active Form – Kill 20 enemies with the Z-Saber while dashing
X Form – Kill 50 enemies with Buster Gun
Power Form – Pull anything 30 times with the Chain Rod
Erase Form – Ricochet 30 shots from enemies with the Shield Boomerang
Ultimate Form – Use every Cyber Elf