After choosing Arcade mode, enter the famous Konami code and start the game in order to start and continue with 30 lives.
When you use this code, your score is not eligible for the High Score Leader Board.
Code Effect Up, Up, Down, Down, Left, Right, Left, Right, B, A Start game with 30 lives
Contributed By: PS2gamemasterGC.
Unlockable How to Unlock 01. Armory Collect 4 different weapon power-ups. 02. Team Work Score 100,000 points in an Xbox Live Co-op game. 03. Untouchable Get to the first tunnel without losing a life. 04. Tunnel runner 1 Beat the first timed tunnel with 33 seconds or more left. 05. Infiltration Destroy the alien tower at the end of the water level. 06. Tunnel runner 2 Beat the second timed tunnel with 55 seconds or more left. 07. Well Equipped Collect 3 different weapons in the second tunnel. 08. Tough Guy Get to the second tunnel without obtaining a single weapon upgrade. 09. Proficient Complete the second tunnel with a score of 100,000 or more in Arcade mode. 10. Partnership Complete the game in Xbox Live Co-op mode. 11. Bulletproof Complete the game in Arcade mode using only 1 credit. 12. Full Assault Complete the game in under 12 minutes.
Contributed By: Jay FNG Philbrook.
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