Level
| Difficulty
| Bonus |
3 | Advanced
| GLG40MM Pipe Bomb Launcher weapon |
3 | Intermediate
| Bonus level |
4 | Advanced
| Icon Bomb weapon |
5 | Advanced
| Proofer playable character |
5 | Intermediate
| Scarpin playable character |
7 | Advanced
| Bonus level |
8 | Advanced
| DICW weapon |
8 | Novice |
Commander playable character |
9 | Advanced
| Bonus level |
10 | Advanced
| Enemy B.A.T. weapon and D.K. playable character
|
11 | Advanced
| PSG-1 weapon |
11 | Intermediate
| Siba playable character |
12 | Advanced
| Bonus level |
12 | Intermediate
| Ump Machine Gun weapon |
13 | Advanced
| SPAS12 weapon |
14 | Advanced
| Bonus level |
14 | Novice
| Shinobi playable character |
15 | Advanced
| Guided Missile 2 weapon and Salamander and Dr. K playable character
|
15 | Novice
| Bonus level |