Tool-assisted game movies
When human skills are just not enough

Scumtron's movies:

#41080965178222342 -
Cybernoid_Screen_Skipping.fm2 (66.2kB fm2 movie [NES])
Uploaded 2017-08-16 01:48:33 by Scumtron (10 files)
For NES Cybernoid: The Fighting Machine (1 file)
In 01:15.01 [4508 frames], 7702 rerecords)
3754 views, 689 downloads
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#39673261103965672 -
Star Wars (Japan) (Namco) Warps_v2.fm2.bk2 (12.5kB bk2 movie [NES])
Uploaded 2017-06-13 16:17:45 by Scumtron (10 files)
In 10:36.93 [38279 frames], 34777 rerecords)
8326 views, 378 downloads
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#39673240864944278 -
Star Wars (Japan) (Namco) Warps_v2-compact.fm3 (216kB fm3 movie [NES])
Uploaded 2017-06-13 16:16:27 by Scumtron (10 files)
In 10:36.87 [38275 frames], 34333 rerecords)
8331 views, 606 downloads
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#33536839331834764 -
NG1_alternate_lv2.fm3 (42.2kB fm3 movie [NES])
Uploaded 2016-09-10 07:45:38 by Scumtron (10 files)
For NES Ninja Gaiden (127 files)
In 03:43.95 [13459 frames], 59787 rerecords)
9042 views, 802 downloads
Problem: the bat boost in 2-2C can put Ryu a half-pixel more to the left—enough to reach the exit a frame sooner in this case. But that change would make the next tosser throw an unavoidable knife, negating that tiny improvement.


  • use spin slash instead of windmill star to clear 2-2A (-1)
  • take better 2-2C bat boost. now the upcoming tosser cooperates because of the different timing. (-1)
  • kill one enemy with down+b due to lack of ninpo (+1)
  • act II ends a frame sooner (0-1-1+1=-1)

But none of that matters. The tosser-boost in 3-2 is acting as a gatekeeper, and it would take at least another 2 frames of improvement before 3-2 to get past him.

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#32913943235010818 -
NG1_pacifist_WIP136v4.scum-compact.fm3 (624kB fm3 movie [NES])
Uploaded 2016-08-13 06:30:18 by Scumtron (10 files)
For NES Ninja Gaiden (127 files)
In 11:21.41 [40952 frames], 183975 rerecords)
9386 views, 837 downloads
Not sure how much of this can be kept since it's hard to jump into a run like this without knowing the reasons for every decision.

  • 22230-23350: Wasn't sure if some subpixel management was going on here, but I tried something different and it worked.
  • 23412: First guy banished with 3 L-presses.
  • 23670: Climbed the right wall to go over backwards and give up a pixel (R @ 23719) to set up the next two dudes for optimal removal.
  • 24091: Bird spawning late had me worried, but a one frame delay before it gets right of Ryu and another during the boost jump kept things moving.
  • 24346: LR on the first frame of regaining control to trade a half-pixel for one more spawn prevention. Bird ends up being super cooperative too!

Also tossed in a blank frame before the slot 5 guy near the end is scrolled off to fix xsub for 5-2A, but more desyncs are right around the corner.

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#32753807843789730 - Ninja Gaiden 39096 WIP
EDIT-26-WORK--Ninja Gaiden--39096--.fm2 (573kB fm2 movie [NES])
Uploaded 2016-08-06 01:25:23 by Scumtron (10 files)
For NES Ninja Gaiden (127 files)
In 10:50.53 [39096 frames], 82562 rerecords)
9464 views, 795 downloads
  • The RTA trick in 5-1 feos found a way to make TAS-worthy the other day only turned out to save 2 frames since it had to be traded for another damage-boost due to health limitations. It's also possible to grab the windmill star in 5-1 and trade 1 frame for 4 more health, but seemingly not without killing the slot 6 bird from the unused boost at the same time.

  • That 2 frame difference set up a new boost in 5-3E which saves another 3 frames. Reaching that point at least 2 frames sooner would also save save another frame, but oh well.

  • Those improvements finally fixed the two tossers in 6-2 that were each costing 1 frame to deal with.
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#32086266050401764 - Ninja Gaiden 39103 WIP
scumtron-39103-meshuggah.fm2 (707kB fm2 movie [NES])
Uploaded 2016-07-06 23:54:44 by Scumtron (10 files)
For NES Ninja Gaiden (127 files)
In 10:50.64 [39103 frames], 81489 rerecords)
9577 views, 750 downloads
Stage 5-6 from 39110 WIP pasted onto Meshuggah's stage 4 changes with a few tweaks to sync things up again.

  • 5-1: Attacks on frames 22761, 23014 delayed one frame to fix slots 5 & 6 subpix values so 2nd bird-boost works.
  • 6-1: Jumps/attack changed before axe-tosser to avoid axe
  • 6-2A: Check out that club that Ryu nearly runs into. Scary!
  • 6-2B: Jumps/attack changed so tossed axe gets killed and fixes xsub for booster enemy 2 screen ahead
  • 6-2D: Less windmill action for now, $BF causes ghoul to stand in the way
  • 6-2E: Tosser still not cooperating, so still losing 1 frame to get through here. Adjusting spawn iterator (interrupt@33781) in dead frames on platform jumps isn't quite enough to fix it either.
  • 6-3C: disc-guy killed one frame earlier so the bird cooperates. (xsub again)

I still haven't looked at the 4-2 changes closely. Not expecting to improve it, but I should probably at least know that for myself

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#16204503253094566 - Skip the Stom fight, still get Telepathy
theaxeman2-crystalis_stomskip.fm2 (286kB fm2 movie [NES])
Uploaded 2014-07-22 18:09:01 by Scumtron (10 files)
For NES Crystalis (2 files)
In 05:25.03 [19534 frames], 425895 rerecords)
9174 views, 835 downloads
A cowardly warp to Leaf after squaring off with Stom results in Tornel rewarding you with Telepathy and moving things forward as if you'd won.


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#972266551336246 - Ninja Gaiden Glitch
Ninja Gaiden--$75=04.fm2 (70.2kB fm2 movie [NES])
Uploaded 2012-09-04 18:25:38 by Scumtron (10 files)
For NES Ninja Gaiden (127 files)
In 00:46.09 [2770 frames], 0 rerecords)
14684 views, 984 downloads

FM2 file begins from a savestate

Taking damage on the same frame as killing a boss results in $75 being set to 4, where normally $75 is always 0. This can occasionally prevent speed values from being added to enemy projectile positions, illustrated here with the bullet-boost leaving 4-1A causing a desync (though other bullets in the level are affected too).

trace logs from frame 487 for both taking and not taking damage: http://pastebin.com/sqkrSDe7 http://pastebin.com/zFeBTbUq (I have not yet analyzed these)

edited trace logs corresponding to frames 2536-2537 in this movie, for $75=0 and $75=4: http://pastebin.com/DeW5DMMV http://pastebin.com/N1zYULW0

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#930430985332892 - Ninja Gaiden WIP
Ninja Gaiden--Scumtron-39110f.fm2 (879kB fm2 movie [NES])
Uploaded 2012-09-02 21:12:34 by Scumtron (10 files)
For NES Ninja Gaiden (127 files)
In 10:50.76 [39110 frames], 79532 rerecords)
14548 views, 982 downloads
51 frames faster than published run. needs new post-boss rejoicing before submission. and i want to finish game resource page before submitting as well.
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