Here are some cheats and tips for the game Piranha.
Cheat mode:
Type kossuvissy at the main menu to enable cheat mode. Then, press [Left]
or [Right] to select a level. Press one of the following keys during game
play to activate the corresponding cheat function.
Effect Key
Energy [F1]
Money [F2]
Random [F3]
Music select [F10]
Drop bomb [F11]
Level skip [F12]