It seems like you have to manage Phoenix more than any other character, with his little inventory. From what I can see you can only enter Cornered mode when you have the Attorney's Badge, which lasts longer depending on how much evidence you have. And you might need three of them to use that Lvl 3.
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SomeC - sheer explosives since meeting that crazy hobo.
BlAcK TuRtLe grabbed the Guru victory, slow but steady.