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Super Mario Bros. 3 - Speedrunner's Edition

Hack of Super Mario Bros. 3


This hack is an extension of Super Mario Bros. 3 - No Autoscrolls designed with additional tweaks and adjustments to improve the SMB3 speedrunning experience while preserving the feel and charm of the original game. Specifically, the following changes have been made compared to the unmodified (vanilla) SMB3:

1. All autoscroller levels have their autoscrolling disabled, including 5-9. (see the No Autoscrolls hack above for more details)

2. The World 8 hand traps can no longer grab you when traversing over them. (You can still enter them with A if desired)

3. Hammer Brother position and movement has been adjusted where necessary to prevent/greatly reduce the chance of ‘marathons’ and excessive marching in general. Additionally maps have been slightly modified in places in order to guarantee avoidance of optional Hammer Brother encounters.

For more details and my reasoning for each change, please be sure to check out the Readme.


Version 1.1: Coin Heaven bonus areas now have autoscrolling removed. Also modified Hammer Brother movement in World 2.

Version 1.2: Added more Hammer Brother movement restrictions.

Version 1.3: Minor position adjustments in World 3 and World 5.

Version 1.4.1: Minor map adjustments in World 2, World 5, and World 6.

Version 1.5: Additional Hammer Brother movement restrictions and a minor map adjustment in World 4

Version 1.6:

  • Removed Star/Music Box requirement for World 8 hand traps.
  • Additional Hammer Brother movement restrictions and minor map adjustments.

ROM / ISO Information:

  • Super Mario Bros. 3 (U) (PRG1) [!].nes
  • CRC-16: CF5C
  • CRC-32: 0B742B33
  • MD-5: 86D1982FEA7342C0AF9679DDF3869D8D
  • SHA-1: 6BD518E85EB46A4252AF07910F61036E84B020D1
  • SHA-256: 4377A7F5E6EB50BDD2AC6F249BF1A7085500ACA8EB41F38545C3A2731C51A579




ContributorType of contributionListed credit
FcoughlinOriginal HackingOriginal work on autoscroller removal for his SMB3 Randomizer

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