TASVideos

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

Submission #2872: Ilari's DOS Jazz Jackrabbit "Episode 1" in 04:43.79

Console: DOS
Game name: Jazz Jackrabbit
Game version: unknown
ROM filename: 0df14a77237729c67ebc2e18e9bbc2f9
Branch: Episode 1
Emulator: (unknown)
Movie length: 04:43.79
FrameCount: 17027
Re-record count: 3631
Author's real name:
Author's nickname: Ilari
Submitter: Ilari
Submitted at: 2010-10-10 01:12:17
Text last edited at: 2010-10-13 10:19:30
Text last edited by: sgrunt
Download: Download (53337 bytes)
Status: published
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Author's comments and explanations:

General

  • Emulator used: JPC-RR r11.1 (should sync on r11 - r11.2)
  • No special settings
  • Complete episode 1
  • Abuses programming errors in game
  • Takes damage to save time
  • Does not use death
  • Aims for fastest time

Streamng link

About game:

Jazz Jackrabbit... Very fast running and shooting action.

Why I did this:

This game is known to be excellent game choice for TASing. With relevant emulator reaching the point where the game can be TASed without noticeable glitching or otherwise bad emulation, I took the task of TASing this.

BIOS/OS/game versions used:

The BIOS/OS versions are identical to 2651S.

The game is downloadable from http://www.dosgamesarchive.com/download/jazz-jackrabbit/

imageinfo report about game image used:

General data:

Field Value
Name jazz jackrabbit(real)
File name /home/Ilari/repositories/jpcrr/disklibrary/jazz jackrabbit(real)
Type HDD
Tracks 16
Sides 16
Sectors 63
Total sectors 16128
Primary extent size 7736
Storage Method 3
Sectors present 6712
Claimed Disk ID 0df14a77237729c67ebc2e18e9bbc2f9

File table:

Timestamp MD5 Size Name
N/A N/A 78 /
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19900101000000 a90a22d0fb4b7d1193299f57aa729ae8 51832 /BONUS.0SC
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19900101000000 4b04944a19e56c913561debeb64bc69f 68930 /BONUSY.000
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19900101000000 385cff546bb6c49ca7690fe7e82cbaa6 1046 /EPIC.ANS
19900101000000 1113e2d398a908f3fb08dec9f3c6e65e 412 /FILE_ID.DIZ
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Tricks:

Route choices

I follow routes of existing Jazz Jackrabbit speedrun (claimed time 5:00.5 by Wille)... No idea how is that timing determined.

Level comments

Diamondus 1

This level is fairly staightforward running forward. I didn't go through bonus room because there's narrow drop before it that would likely cost more time than it would save.

Diamondus 2

Here there are other things than running. The controls aren't that good, which makes for bit clumsy turnarounds. For some reason the shot I use to shoot the speed upgrade doesn't disappear even if it goes outside the screen (from top).

Tubelectric 1

The tubes downward are annoying... Especially when they hold jazz floating...

Tubelectric 2

More of the same... There would be nice shortcut if one could break out of first pipe into bonus room... Alas, this appears to be impossible.

Medivo 1

Those swords are ocassionally very annoying due to placement. For instance the one after drop in narrow corridor is impossible to shoot and futrhermore damage knockback is blocked, so I need to wait for it to pass. The first spike section the balls swinging on chains just don't co-operate so I take a hit on spikes (fortunately this game does not have instant-death spikes, they just do normal damage).

Then there's the hoverboard section. Annoying to TAS because hoverboard vertical velocity is slow and hoverboard has horizontal inertia... At least it does not have vertical inertia. I also had to pause for moment to avoid getting hit by topmost sword.

This level is long (the only 1 minute+ level in whole episode).

Medivo 2

More of medivo... More complicated level but not much to say except avoid running on spikes even with invincibility (as it runs at slower 5 speed instead of 6) and that last sword is VERY annoyingly timed.

Guardian 1

Just rapid fire missiles into this one (hint: Use lua script). I could jump immediately to start firing but then would get hit by cannon shot so I drop down first. Killing him in middle of jump (even with waiting for him to drop) is faster than waiting for jump to land.

Screenshot suggestions:

Lobbing launcher ammo into electric enemy in level 4.

Final stats:

Length: 04:43.792 Rerecords: 3631.
Nach: Fantastic job, best Sonic run ever. Hope you do another 5 TASs for the other episodes too. Accepting.

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