CHR RAM Smiley Test
To activate the CHR RAM "Smiley Test" easter egg for this game, you will need to power on the NES console while holding Up, Down, Left, Right, B, Select, and Start. Note, however, that it is not normally possible to hold all four D-Pad buttons without specially modified controllers; standard ones will not work.
PRG ROM Smiley Test
To activate the PRG ROM "Smiley Test" easter egg for this game, you will need to power on the NES console while holding Up, Down, Left, Right, A, Select, and Start. Note, however, that it is not normally possible to hold all four D-Pad buttons without specially modified controllers; standard ones will not work.
Walk Anywhere
While playing the game, press Start to pause it. Hold Up and A, then unpause the game. After, you can hold A, B, and Select and then use the D-Pad to move almost anywhere - however, some locations will still kill you. This is best for moving through walls and the like.
