Mister Mosquito Cheats - PlayStation 2

In-game reset
Hold [L1] + [L2] + [R1] + [R2] and press [Start] + [Select] during game play.

Kaneyo Mosquito
Hold [L1] and quickly press [Up], [Right], [Left], [Down], [Square]x2, [R1]x3 at the character selection screen. A shout will confirm correct code entry.

Kenichi Mosquito
Enable the "Kaneyo Mosquito" code. Then, hold [L2] and quickly press [Up], [Right], [Left], [Down], [Square]x2, [R2]x3 at the character selection screen. A shout will confirm correct code entry.

Two player duel mini-game
Hold [Start] + [Select] on controller two after turning on the system. Press [Square] to move forward, [X] to jump, and [Triangle] (when the power meter is full) to do a rocket attack. Knock your opponent out of the ring to win.

Reckless Cyclist mini-game
Rotate the Right Analog-stick thirty times at the title screen. Alternately, hold [L2] and continuously rotate the Right Analog-stick clockwise at the title screen.

Year 2
Fill each of the sixteen Ex Tanks to unlock Year 2.

Special costume
Unlock all alternate costume colors on every level.