Mega Man Zero 2 - Platform: Gameboy Advance

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