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Speedrun Timer

Hack of Tetris


Adds a timer for NES speedruns where the goal is to complete 100 lines. Future additions may include the ability to choose between several categories, as well as a “qualifying” mode for NES Tetris tournaments. Some technical notes:

  • The timer assumes a 60fps console, when in actuality most NES’s run at ~60.098fps. This is not really a massive issue because it takes over 10 minutes for the error to exceed a second, but the correct time can be found by multiplying the raw time by 60/60.098.
  • Pausing is disabled.
  • Until the run’s completion, the displayed time is actually a frame longer than the actual elapsed time. For some reason the timer stops incrementing the frame before 100 lines is visibly reached, so this discrepancy is compensated for here.

ROM / ISO Information:

  • Database match: Tetris (USA)
  • Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
  • File SHA-1: 77747840541BFC62A28A5957692A98C550BD6B2B
  • File CRC32: 6D72C53A
  • ROM SHA-1: FD9079CB5E8479EB06D93C2AE5175BFCE871746A
  • ROM CRC32: 1394F57E



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