| Select Level | DNSTHMN |
| Invincible | MMRTL |
| Invisible | DNLVSHSF |
| Unlimited Continues | CNTN |
| Unlimited Ammo | MMLVSRM |
| Weapons | NSRLS |
| Tin Soldiers | TNSLDRS |
| Living Large | LVNGLRG |
| Test Info | THDTST |
| Vikki | GRNGRLRX |
| Plastro | PLSTRLVSVG |
| Hail Mendheimicus | SHRMNSLDR |
| Big Green One | BGGRN |
| Mini mode | DRVLLVSMM |
| All Characters | ALCHR |
| All MP Characters | VRCLN |
| Attack Mission | LNLGRMM |
| Spy Blue Mission | TRGHTR |
| Bathroom Mission | TDBWL |
| Riff Mission | MSTRMN |
| Forest Mission | TLLTRS |
| Hoover Mission | SCRDCT |
| Thick Mission | STPDMN |
| Snow Mission | BLZZRD |
| Shrap Mission | SRFPNK |
| Fort Plastro Mission | GNRLMN |
| Scorch Mission | HTTTRT |
| Showdown Mission | ZBTSRL |
| Sandbox Mission | HTKTTN |
| Kitchen Mission | PTSPNS |
| Living Room Mission | HXMSTR |
| The Way Home Mission | VRCLN |
Restart level:
While playing, hold R + L + C-Down.
