Monster Force – Gameboy Advance

Monster Force - Platform: Gameboy Advance

Play as Drew or Mina
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Hold L + R + B + Right at the character selection screen.

Complete level quickly
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Hold Right + R + L + A during game play

Invincibility
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On the Pause screen, hold L + R + B and press Down, now your 
energy will refill continuously. 

Level Skip
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During game play, hold L + R + A and press Up to complete 
the current level.