All of these codes are from Nintendo Power Volume 128. They unlock extra games, history, and credits roll.
| Code: | Result: |
| red circle, gray diamond, blue square, green blockhead | Unlock Snake |
| yellow alien, blue pillar, blue pillar, green blockhead | Unlock History |
| green blockhead, green blockhead, blue square, green blockhead | Unlock Furd Herder |
| blue pillar, yellow alien, gray diamond, gray diamond | Unlock Credits Roll |
| blue square, blue pillar, gray diamond, green blockhead | Unlock "Fake" History |
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