Tough Guy
Get to the second tunnel without obtaining a single weapon upgrade.
20 ✓ October 9th, 2008
Infiltration
Destroy the alien tower at the end of the water level.
15 ✓ August 23rd, 2008
Tunnel runner 2
Beat the second timed tunnel with 55 seconds or more left.
15 ✓ October 9th, 2008
Armory
Collect 4 different weapon power-ups.
10 ✓ March 30th, 2007
Team Work
Score 100,000 points in an Xbox Live Co-op game.
10 ✓ August 23rd, 2008
Untouchable
Get to the first tunnel without losing a life.
10 ✓ March 30th, 2007
Tunnel runner 1
Beat the first timed tunnel with 33 seconds or more left.
10 ✓ March 30th, 2007
Full Assault
Complete the game in under 12 minutes.
30 
Bulletproof
Complete the game in Arcade mode using only 1 credit.
25 
Partnership
Complete the game in Xbox Live Co-op mode.
20 
Proficient
Complete the second tunnel with a score of 100,000 or more in Arcade mode.
20 
Well Equipped
Collect 3 different weapons in the second tunnel.
15