CheatCodes.com has all the official Cannon Spike Dreamcast cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Monday May 20, 2013 for Cannon Spike are shown below.
At the character selection screen, highlight Cammy and press Up or Down.
Successfully complete the game with any character on any difficulty setting to unlock all art in the gallery.
Successfully complete the game with any character on any difficulty setting. Press Left or Right at the character selection screen until Mega Man and B.B Hood appear.
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