Unlock Metal Mario (In VS. Modes):

Finish Story Mode with Wario on Normal, Hard, or Super Hard Difficulty without

losing once. After you beat Rudy, you’ll face Metal Mario. Defeat him without

losing once to beat him.

NOTE: Using REDO will count as a loss.

Unlock Vampire Wario (In VS. Modes):

Finish Story Mode with Dr. Mario on Normal, Hard, or Super Hard Difficulty without

losing once. After you beat Rudy, you’ll face Vampire Wario. Defeat him without

losing once to beat him.

NOTE: Using REDO will count as a loss.

Change AI Settings In VS. Mode:

At the Character Select Screen, highlight a character. Hold L and Press A to increase

AI of that character. Hold L and Press B to decrease the AI of that character.

Super Hard Mode Highlight Hard in Story Mode:

Pressing Z will change the difficulty setting to Super Hard.

Thanks to Revolution readers Koopa!