The Simpsons: Bart vs. the Space Mutants (NES)

The Simpsons: Bart vs. the Space Mutants marks The Simpsons' first foray into the world of video games. Too bad it's a rather mediocre game.

Streets of Springfield


In the first stage, stand on the awning above Tool World's door. From there, jump to the left, and try to position yourself just to the right of the first bush you see. If done correctly, you should land on top of the grass. Press Down to drop down, and the initials "RK" will fall from above. This also changes the enemies on the left into the initials "LK/AK", though they will return to normal if you leave the area.

These may be relatives of Garry and Dan Kitchen, two of the game's designers/programmers, or possibly Jesse Kapili, the game's artist.

Springfield Mall


In the second stage, the second trash can on the second floor can be jumped on repeatedly to release a plethora of useful items, including coins, hats, a 1-up, invulnerability, and even more mysterious initials:



These are probably relatives of Henry C. Will IV, one of the game's programmers. Each one is worth one coin.

Unused Items
It seems that at least two additional items were intended to pop out of the aforementioned trash can, but were removed for unknown reasons. Change ROM address to one of the following values and jump on the trash can a few times to see them:

Japanese Text


Value: 

Japanese text that reads "Henry Will", the aforementioned programmer.

Blobert


Value: 

Blobert from A Boy and His Blob, another Imagineering game.

Sound Test


On the first level, shoot the letter "E" of the "Kwik-E-Mart" sign with a rocket. This will reward you with a Krusty head worth three extra lives, and a new Sound Test option! Choose it from your inventory by pressing the Select button, select a sound effect by pressing Up or Down, then press Start to play it.