- Hell mode
Successfully complete the game on the Chaos difficulty setting to unlock the Hell difficulty setting.

- Extend duration of elemental ammunition
To extend the duration of your elemental ammunition for any Gunrod, just switch to a different Gunrod. When you need the elemental ammunition Gunrod, just switch back to it. This will not reload the ammunition. Just keep what you have remaining saved.

- Achievements
Do the following things to obtain the corresponding Gamerscore points:

10 Points
Stage 5 Cleared	Successfully complete stage 5.
Stage 3 Cleared	Successfully complete stage 3.
Stage 2 Cleared	Successfully complete stage 2.
Stage 4 Cleared	Successfully complete stage 4.
Stage 6 Cleared	Successfully complete stage 6.
Stage 1 Cleared	Successfully complete stage 1.
50 Points
Easy Difficulty Mode Cleared	Successfully complete all stages in Easy mode.
100 Points
Normal Difficulty Mode Cleared	Successfully complete all stages in Normal mode.
150 Points
Hard Difficulty Mode Cleared	Successfully complete all stages in Hard mode.

1 point Points
Hell Difficulty Mode Cleared (1 point)	All stages complete in Hell mode.
99 Points
Total Play Time of 15 Hours	Game was played for over 15 hours.
140 Points
All Stages Cleared	All stages completed in a difficulty mode.
150 Points
Full Power-Up Finishd	All in-game power-up elements collected.
250 Points
Chaos Difficulty Mode Cleared	All stages completed in Chaos mode.

- Chaos mode
Successfully complete the game on the Hard difficulty setting to unlock the Chaos difficulty setting.