All weapons:
Enter NSRLS as a password. Go to any level. When the orders appear, press B instead of A until you find the weapon you want. Then, press A to start with the selected weapon.
Information in this section was contributed by Babacake, Shahin, and PLJ44, and Ncdavidson.
Maximum ammunition:
Enter MMLVSRM as a password.
Information in this section was contributed by Babacake and Shahin.
Play as General Plastro:
Enter PLSTRLVSVG as a password.
Information in this section was contributed by Babacake and Shahin.
Play as Tin Soldier:
Enter TNSLDRS as a password. Note: Enter this code after activating another character code to create a Tin version of that character.
Information in this section was contributed by Babacake and Shahin.
Play as Hail Mendheimicus:
Enter SHRMNSLDR as a password.
Play as Vikki:
Enter GRNGRLRX as a password.
Information in this section was contributed by Babacake and Shahin.
Play as Hoover and Riff:
Enter STPDMN as a password.
Mini mode:
Enter DRVLLVSMM as a password.
Information in this section was contributed by Babacake and Shahin.
Large mode:
Enter LVNGLRG as a password.
Test information:
Enter THDTST as a password.
Information in this section was contributed by Babacake.
Final level:
Enter DNSTHMN as a password.
Information in this section was contributed by MGM1155.
Win level:
Enter RDHNTRK as a password to automatically win all levels, except for the last one.
Information in this section was contributed by easterndragon.
| Level | Password |
| Attack | LNLGRMM |
| Spy Blue | TRGHTR |
| Bathroom | TDBWL |
| Riff Mission | MSTRMN |
| Forest | TLLTRS |
| Hoover Mission | SCRDCT |
| Thick Mission | STPDMN |
| Snow Mission | BLZZRD |
| Shrap Mission | SRFPNK |
| Fort Plastro | GNRLMN |
| Scorch Mission | HTTTRT |
| Showdown | ZBTSRL |
| Sandbox | HTKTTN |
| Kitchen | PTSPNS |
| Living Room | HXMSTR |
| The Way Home1 | VRCLN |
