Mysterium Cheats - GameBoy
Primary Collection of Cheats
Continue
Begin a new game after losing your last life. Create
the Glass Key and enter the door. Follow the passageway to reach
the first turn. Take and use the Vitriolok at this location.
Level skip
Hold [Down] + [B] and press [Select]
at the map screen.
Magic items
Hold [Left] + [A] + [B] and press [Start]
at the map screen. A "Pass Key" item will appear in
inventory. Drop this item into a pool to change it into the next
magic item in the following order. "Pass Key" acts as
any key, "Downlevl" to go to the next level, "Uplevel"
to restart the current level, and "Superpow" for invincibility.
Full inventory
Hold [Up] + [B] and press [Select] at
the map screen. Repeat this code to cause different items to appear.