Simpsons - Treehouse of Horror - Gameboy Color
Password screen
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Press Right(2) when "Start" appears on the banner of the Simpson house.
Level Passwords
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2 LYTPJTQWBKQ or FWXCKJXGLWN
3 SKCFKPJTFSJ
4 GFTFSRTNWQC, QCGTGYSTFSK, or BXPGCFPYJWB
5 WSQJLTQFYWK
6 NPKYGBKTFWQ
7 XQRFJWRBTWP