Achievements
Complete each achievement to get the allotted gamerscore. The numbers between the () is the points given for each achievement.
| Unlockable | How to unlock |
| All Stages Cleared (140) | All stages were beat in some difficulty mode. |
| CHAOS Difficulty Mode Cleared (250) | All stages were beat in CHAOS mode |
| EASY Difficulty Mode Cleared. (50) | Unlock by beating all stages in EASY mode. |
| Full Power-Up Completed (150) | All in-game power-up elements were collected |
| HARD Difficulty Mode Cleared. (150) | Unlock by beating all stages in HARD mode. |
| HELL Difficulty Mode Cleared (1) | All stages were beat in HELL mode. |
| NORMAL Difficulty Mode Cleared. (100) | Unlock by beating all stages in NORMAL mode. |
| Stage 1 Cleared. (10) | Unlock by beating stage 1 in any difficulty mode. |
| Stage 2 Cleared. (10) | Unlock by beating stage 2 in any difficulty mode. |
| Stage 3 Cleared. (10) | Unlock by beating stage 3 in any difficulty mode. |
| Stage 4 Cleared. (10) | Unlock by beating stage 4 in any difficulty mode. |
| Stage 5 Cleared. (10) | Unlock by beating stage 5 in any difficulty mode. |
| Stage 6 Cleared. (10) | Unlock by beating stage 6 in any difficulty mode. |
| Total Play Time of 15 Hours (99) | Game was played for over 15 hours |
Verified by: this cheat is unverified
Submitted by:
Krunal on August 31, 2006
Fast Reload
To avoid waiting for weapons to reload, change weapon and cycle back to it as soon as the reload starts. When you select the weapon again, it will be full of ammo.
Verified by: this cheat is unverified
Submitted by:
Ren of Heavens on June 07, 2007