Super Mario Bros. 2
Super Mario Bros. 2 is a reworking of the Japanese game Yume Koujou Doki Doki Panic. The original Super Mario Bros. 2 was never released in North America for the NES, but it did appear on the SNES game Super Mario All Stars under the title, The Lost Levels. While the game has several elements of the first Super Mario Bros., meaning it's a platform action game with a lot of running an jumping, it has several new aspects as well. You now get to play one of four characters, Mario, Luigi, Peach, or Toad. Each one has various abilities regarding jumping height, distance, and strength.
See the guide on Easy Cheats to find out how to use these.
04C2 - 2F - Infinite Health 04ED - 09 - Infinite Lives 04C9 - 3C - Infinite Float during Jump 0085 - 80 - Invulnerable 062B - 03 - Unlimited Spins (Coins)
Similar to the first game. Letters, number, and a few symbols. Although the character set is repeated several times in the ROM with minor variations in each one, the variations are not important.
D0=0 D1=1 D2=2 D3=3 D4=4 D5=5 D6=6 D7=7 D8=8 D9=9 DA=A DB=B DC=C DD=D DE=E DF=F E0=G E1=H E2=I E3=J E4=K E5=L E6=M E7=N E8=O E9=P EA=Q EB=R EC=S ED=T EE=U EF=V F0=W F1=X F2=Y F3=Z F4=- F5=? F6=. F7=, F8=© FB=