(Link to video)
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2-player run of Double Dragon, Speedrun Time of 7:35

Overview

  • Emulator used: Mame-RR 0.139-v0.1-beta
  • Difficulty: Easy

Highlights

  • 2 Players controlled at once
  • Lots of lag (well known issue with 2-player mode)
  • Intentional damage and deaths taken for positioning
  • Intentional damage and death to save time
  • Intentional game over for 1P

Tools used

I loved the idea of using the LUA Script created by Adelikat and others for games like The Simpsons, but it didn't work for me. The Double Dragon AI is too trolly, and I got tired of re-recording sequences, only to have the AI turn the wrong way.
I opted to use a Koolertron Single-Handed Programmable Mechanical keyboard to record instead, all input recorded at the same time by me (no special tools to record single character tracks at a time)

Notes about 2 Player mode

Even though this run is (for the most part) technically more efficient than my 1P runs, the completion time is much slower, due to lag. There is no way around this unless you modify CPU settings, or speed up video playback. The lag becomes really bad when playing with 2 Players
Other things of note:
  • On Stage 2, three groups of mobs come out of elevator instead of two (you're expected to kill 6 enemies before Boss spawns, instead of 5)
  • Straightforward paths don't always yield the best time, due to AI tracking behavior
I don't plan to make another 2P video of this. The lag is too bad, but I thought it would be fun to share what's possible in 2P mode (esp. since there is no documented attempts of 2P speed runs AFAIK)

RAM Watch, Combos, etc

Please visit forum thread Forum/Topics/19968 - I maintain this thread for general speed run notes

Overview of key moments below!

Stage 1 Boss fight

Pauses in movement are necessary in order to set up positioning for knives. My quick route I used in 1 player TAS runs do not work in 2 player unfortunately

Stage 2 Boss fight - Intentional Death and Box Drop

This is the only position available to get the box to fall at foot of elevator. Other paths cause the box to bounce off screen or get trapped in corner (which screws up enemy tracking)

Stage 3 First fight - Purple Box

Enemy speed accelerates while tracking towards weapons - I use this quirk to speed up the battle. I also throw the box off screen to prevent the next off screen enemy from tracking to top of screen
The purple box glitch is an old trick that's been documented by others
I also use another glitch (holding kick button to freeze player) until the enemy tries to pick up the box. This sets up optimal positioning

Stage 3 Tag Team combos

Once a character is in crumpled state - the game doesn't care who grabs him. I use this to tag team combos through the game

Stage 3 Double Adobo fight

I do a lot of intentional damage here and careful positioning to ensure they are falling towards the right of screen (adobo/bolos fall forward while they're HP > 25 points)

Stage 4 Wall Traps

I see now why I rarely saw people finish this game in 2P mode. Twice as many wall pushes coming out

Stage 4 Double Bolo fight, Intentional Death

I drop the enemies with two sticks of dynamite this time - much faster (in spite of lag)
I kill both players at once to keep all enemies hovered around the dynamite

Stage 4 Intentional Billy Game Over

A player vs player fight starts if both players are alive after boss dies. I avoid this sequence and simply kill off Billy before I kill the boss - the final fight between players is simply too boring to watch, and it doesn't end (glitch in code that isn't registering death of either player??? haven't debugged)

feos: While for me personally, this movie looks more fast-paced than the starred Castlevania run, it doesn't mean its automatically entertaining either. The audience hasn't enjoyed this approach, because it doesn't seem to compensate for increased lag, by offering any unique mechanics or tricks only available for 2 players. Most of the tame it's the same thing as 1P, just slower. In a few places the second player does help, but not enough to make the branch look unique and outstanding. Rejecting.

TASVideoAgent
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This topic is for the purpose of discussing #6087: sugarfoot's Arcade Double Dragon "2 players" in 07:49.42
Cyorter
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The another submission: 6078S This submission: 6087S LUL Well let's watch this one, I think it'll be as good as the other one, or even better!
sugarfoot
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Cyorter wrote:
The another submission: 6078S This submission: 6087S LUL Well let's watch this one, I think it'll be as good as the other one, or even better!
Oh man that's an unfortunate numbering sequence hah. I hope you find this one enjoyable (or at least interesting!). Now that I have both one-player and two-player to compare, I'm finding 1P more entertaining (in terms of both watching, and making them). I think a ROM hack of this game that eliminates the lag frames would be incredible. Cheers
ViGadeomes
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I'm not sure to meet the interest behind this TAS. Even if it's well done with new 2 players only strats, I just see more lags and more ennemis than the previous 1 player TAS submission and not enough difference between them... Sorry but it will be a meh vote from me.
sugarfoot
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ViGadeomes wrote:
I'm not sure to meet the interest behind this TAS. Even if it's well done with new 2 players only strats, I just see more lags and more ennemis than the previous 1 player TAS submission and not enough difference between them... Sorry but it will be a meh vote from me.
No worries - totally understand the meh vote. I made this to cross it off my bucket list, and share what I imagined would be a submission bound for The Vault
ViGadeomes
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the only way this TAS to be accepted is in Moons because it's slower than your 1 player TAS so it can't be accepted in Vault...
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This looked the same as the 1P version, but with more lag. I only noticed two places where it looked different prior to the boss fight. I was kind of disappointed that 1P offed himself during the boss fight. I wanted to see Billy and Jimmy fight each for the girl! Anyway, it's a solid Meh.
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I'm really sorry but I have to say that I found this movie less impressive than the 1 player one. Meh vote from me. By the way, kudos for the dedication! I'm looking forward to see more TASes from you!
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