Ample Equipment (15 points):
Acquire up to 3 kinds of weapons in the second tunnel.
Unvulnerable (10 points):
Make it to the first tunnel without dying.
Tunnel Runner 2 (15 points):
Beat the second timed tunnel with 55 seconds or more to spare.
Tunnel Runner 1 (10 points):
Beat the first timed tunnel with 33 seconds or more to spare.
Tough Guy (20 points):
Make it to the second tunnel without getting a single weapon upgrade.
Team Work (10 points):
Acquire 100,000 points in an Xbox Live cooperation game.
Proficiency (20 points):
Beat the second tunnel and reach at get at least 100,000 points in Arcade mode.
Partners (20 points):
Beat the game in Xbox Live Co-op mode.
Infiltrating (15 points):
Destroy the alien tower at the end of the water stage.
Full Assault (30 points):
Beat the game in less than 12 minutes.
Bullet Resistant (25 points):
Beat the game in Arcade mode utilizing a single credit.
Armor (10 points):
Acquire gout different weapon power-ups.
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