TASVideos

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

Submission #4186: slamo's DOS Commander Keen in Keen Dreams in 04:40.11

Console: DOS
Game name: Commander Keen in Keen Dreams
Game version: any
ROM filename:
Branch:
Emulator: JPC-RR r11.8 rc1
Movie length: 04:40.11
FrameCount: 16807
Re-record count: 4077
Author's real name: MRT
Author's nickname: slamo
Submitter: slamo
Submitted at: 2014-02-05 16:31:46
Text last edited at: 2014-02-08 17:47:42
Text last edited by: Ilari
Download: Download (52086 bytes)
Status: published
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Author's comments and explanations:
TEMP ENCODE: PLEASE REPLACE


(Link to video)

Movie Information

Keen Dreams is shareware and can be downloaded here: ftp://ftp.3drealms.com/share/keendm.zip

The game runs at 70 frames per second internally, but only refreshes the screen every 35 frames.

  • Emulator: JPC-RR r11.8 rc1 (syncs on r11.7)
  • Aims for fastest time
  • Uses death to save time
  • Uses hardest difficulty
  • Genre: Platform

Image info:

  Type: HDD
  Tracks: 16
  Sides: 16
  Sectors: 63
  Total Sectors: 16128
  MD5: 2331702ee0c778dc8281e772d266760c

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This is Keen Dreams! Nicknamed by fans "Keen 3.5", Keen Dreams was developed between the release of Keen 3 and 4 but not released until after Keen 6. The goal of the game is to defeat King Boobus Tuber. To do so, Keen must collect and use 12 Boobus Bombs. There are many bombs spread across the land of Tuberia, but thankfully 2 levels in close proximity to the castle hold 6 each! Only 4 of the 10 levels are actually required to beat the game, but a 5th is visited in this run in order to grab a slightly more efficient key. Keen trades his stunner for Flower Power, strange pellets that temporarily change enemies into flowers. His signature pogo stick is also not present.

It should be noted that the RTA (real time attack) timing used by speedrunners for this run would be 4:26.

Glitches used

Death exit

If you die next to the right side of a level, part of you clips out of the level and the game awards you the exit. This is the most significant time-saving glitch and is used to make 2 levels quicker.

Enemy dropping

If an enemy is stunned with a pellet while exactly on the edge of a platform, the flower will fall off. This trick is used in the first level to set up a death exit.

Hazard jumping

The harmful effects of floor hazards such as glowing slime and fire can be avoided by simply setting up an auto-jump before landing on it (releasing and then holding Ctrl before impact).

Level comments

Setup

The "/comp" command line extension turns on SVGA compatibility and is needed to prevent flickering. Hard difficulty minimizes the time that enemies are stunned; since the first level depends on a death exit from a stunned enemy, hard difficulty is actually the quickest.

Overworld

Overworld travel is fairly straightforward, but it is possible to use specific corners to gain slight boosts which saves a handful of frames throughout the run.

Horseradish Hill

The first level is completed with a death exit by dropping a potato from a floating platform. It's not possible to stun one immediately from below; you actually have to see them first in order to be able to hit one of them. An extra pellet is grabbed here, which ended up not being necessary, but didn't waste any time to get.

Melon Mines

The sole purpose of this level is to grab a key. Keys are kept between levels and this one will be used in the final level. The final level does contain two keys, but one is very inefficient to grab so this key ends up being slightly better (by around 1.5 seconds). There are 3 bombs on this level but they require the key and are simply not worth it.

Spud City

This is the longest level in the run. It contains 6 bombs: 3 underground and 3 on a floating platform near the beginning of the level. There is actually an extensive network of secret passages under this level, but only a fraction of it is required to get to the bombs. This level showcases the Frenchy's odd behavior. If you get too close to them, they don't throw anything at you and would rather run away, giving the appearance of you chasing them. They are quite fast so it's the best enemy to use to set up another death exit.

Apple Acres

Apple Acres contains another secret with 3 bombs. Thankfully the 6 bombs are near the exit so this level is actually very quick.

Castle Tuberia

The goal of this level is to collect 2 keys and use them to exit near the top of the castle. Since we already have one, the key outside the left of the castle is skipped.

Boobus Chamber

12 bombs are hurled as quickly as possible to complete the game.

Thanks

  • Xarthok: Came up with the RTA route, which ended up being the fastest for a TAS as well!
  • Ilari: Helped me get the game working properly in JPC-rr, also I cannibalized his Jetpack LUA script for the purposes of this game.

Nach: This movie isn't very entertaining. A lot of jumping around behind the walls where you can't see anything, and normal play is rather dull and uneventful. Nor was reception that good either. All that being said, the game was played well. Accepting for vault.

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