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Classic Tetris Monthly is a series of tournaments based on the Tetris game published by Nintendo and released in North America for the Nintendo Entertainment System in 1989. Players compete in a single-elimination tournament with emulators or consoles with the unmodified game or any of the approved ROMs. Any controller/device is allowed so long as there is one button per input and no turbo functions. Competitors of all ages may compete. However, local laws may restrict monetary rewards to certain age groups. CTM will follow local guidelines when rewarding cash prizes.

ROMs, Hardware, Controllers, Game Genie Codes, and Emulators Guide

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Approved NTSC ROMs

  • – Tetris Gym v3.0+
  • – “Hydrant” SPS ROM
  • – Unmodified 1989 Release

Approved Hardware & Consoles

  • – All


  • – One button per input.
  • – No turbo functions

Preferred Game Genie Codes for Competition

  • – OPIPEX – Rocket Skip
  • – NNAOOK or ENAOOK – Score Uncap
  • – AEPXLL – Disable Pausing
  • – IZVOXAIA TZVOUALP – Level 7 colors swap
  • – TPNPGVYL – No flash on Tetrises

Preferred Emulators

  • – Mesen
  • – Nestopia
  • – Retroarch with either core: 1 frame runahead, no shaders

Banned Emulators

  • – None

Handcam/Facecam for December 2022

  • – Masters Events, Challengers Circuit: Handcam is required while Facecam is strongly preferred. Failure to comply will result in disqualification.
  • – Futures Circuit, Hopefuls Circuit, Community Tournaments: Handcam and Facecam are voluntary and not required, but still preferred.
CTM Stencil


January 2023 Rules and Updates


Superstreams - Masters, Challengers, Futures, Hopefuls




CTM is not draconian nor are these guidelines permanent. If you find room for improvement or have questions, reach out to the Tournament staff. Have fun!