#8094: eien86 & Denial140's NES Superfast Mario Bros. "warps" in 01:07.94

Introduction

This movie builds on top of the recently published [5127] NES Superfast Mario Bros. "warps" by Denial140, negative seven & chatterbox in 01:09.07. I (eien86) didn't quite pay attention to it while it was being processed because I was working on the Prince of Persia TAS. Once I noticed this romhack, I couldn't help but give it a go. What a piece of fun it was.

Thanks to Denial140 for finding 11 more frames, mainly with the wrong warp in 8-4c. Also to negative seven and chatterbox for their work in the previous movie.

Software + Hardware

Rom Information

Base Rom: Super Mario Bros. (JU) (PRG0) [!]

SHA1:FACEE9C577A5262DBE33AC4930BB0B58C8C037F7
MD5:8E3630186E35D477231BF8FD50E54CDD

Hack: Superfast Mario Bros.

Link: https://www.romhacking.net/hacks/7571
SHA1: C915DA0B19010E67520508BB4950D6D3B172D77D
MD5: 28EE68B27CC3315B937878651DA7E8E8

Emulator

EmuHawk 2.8.0 (Core: NesHawk)

Routing Bot

Bot: JaffarPlus
Routing Core: QuickNES
Platform: 'The Jaffanator' - AMD Ryzen Threadripper 3990X (64 cores, 128 threads) + 256Gb RAM (Average Exploration Performance: 1.2M States/s)

Comparison Movie

Timing Table

                       Old              New              Diff       
    World       Stage    Initial   Total     Initial     Total    Stage   Total
     Boot         0        62         0        61         -1       -1   
      1           1        62       307        61        307        0     -1
  Transition              369        65       368         65        0     -1
      1           2       434       414       433        413       -1     -2
  Transition              848        27       846         27        0     -2
      4           1       875       470       873        470        0     -2
  Transition             1345        65      1343         65        0     -2
      4           2      1410       168      1408        160       -8     -10
  Transition             1578        36      1568         36        0     -10
      8           1      1614       134      1604        134        0     -10
  Transition             1748        24      1738         24        0     -10
      8           2      1772       776      1762        762      -14     -24
  Transition             2548        27      2524         27        0     -24
      8           3      2575       459      2551        437      -22     -46
  Transition             3034        24      2988         24        0     -46
      8           4a     3058       453      3012        442      -11     -57
  Transition             3511        24      3454         24        0     -57
      8           4b     3535       165      3478        164       -1     -58
  Transition             3700        26      3642         26        0     -58
      8           4c     3726        78      3668         78        0     -58
  Transition             3804        26      3746         26        0     -58
      8           4d     3830        70      3772         59      -11     -69
  Transition             3900        26      3831         26        0     -69
      8           4e     3926       138      3857        138        0     -69
  Transition             4064        23      3995         22       -1     -70
      8           4f     4087        63      4017         65        2     -68
  Movie End              4150                4082                         -68

A +- 2 frames are lost/won on emulator differences. We argue that any obsoleting submissions need to be done with Bizhawk to avoid bad CPU/PPU timing and lag detection emulation to distort the movie length.

New Tricks

Fake Vine

For some reason, it is possible to fool the game into believing there's a vine in the middle of the level by pressing L+R at a precise moment, with the effect of having Mario shoot up to the right, saving a bunch of frames.