Street Fighter Alpha 3 MAX - Platform: Sony PSP

Play as Shin Akuma:
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Complete Arcade mode with Evil Ryu. Then at the character selection screen, hold 
Select and press any button to choose Akuma.

Play as EX-M.Bison:
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Complete Arcade mode. Then at the character selection screen, highlight M.Bison 
and hold Select while choosing him.

Play as Final-Vega:
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Complete Arcade mode. Then at the character selection screen, highlight Vega and 
hold Select while choosing him.

Use Shin Gouki:
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Beat "Arcade Mode" with Evil Ryu once. Afterwhich, press and hold "Select" when 
using Gouki.

Easy level3 combo and special attacks:
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Whilest in game, hit pause and go to button Config.. where it says Taunt-select 
keep going right and choose the special or special combo wanted... return to game 
and press select for the attack.