Cheat Contra Advance-The Alien Wars EX
| # | Description | Code |
| 1E | Enable Code (Must Be On) | 0000D66C 000A 1004A68C 0007 |
| 1 | Infinite Lives P1 | 33002C60 0063 |
| 2 | Quick Score Gain P1 | 83002C64 FFFF |
| 3 | Max Score P1 | 83002C64 E0FF 83002C66 05F5 |
| 4 | Infinite Continues | 33001A84 0063 |
| 5 | Press Select+Up For Spread | 74000130 03BB 33002CA8 0001 |
| 6 | Press Select+Down For C Missiles | 74000130 037B 33002CA8 0002 |
| 7 | Press Select+Left For Homing Missiles | 74000130 03DB 33002CA8 0003 |
| 8 | Press Select+Right For Flamethrower | 74000130 03EB 33002CA8 0004 |
| 9 | Press Select+L Trigger For Laser | 74000130 01FB 33002CA8 0005 |
| 10 | Press Select+R Trigger For Tank Missile | 74000130 02FB 33002CA8 0006 |
| 11 | Invincibility [Note 1] | 33002CA0 0063 |
Start On Level Modifier Codes[Note 2]
| ||
| 12 | Level 2 | 73001A6C 0000 33001A6C 0001 |
| 13 | Level 3 | 73001A6C 0000 33001A6C 0002 |
| 14 | Level 4 | 73001A6C 0000 33001A6C 0003 |
| 15 | Level 5 | 73001A6C 0000 33001A6C 0004 |
