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Kirby is cute but you can use animals if you want in this game.

Bad 30fps video

Requirements for 100%

  • Beat all stages including Dark Matter
  • Get all Rainbow Drops
  • Get ugly girl Blob from bag

Tricks

Maintain speed
Kirby's walking speed is changed between 1.39 and 1.51 when he goes to right (This doesn't happen when going to left). Spit out and headbonk on ground can keep his speed for short time.
Walking on slope
Downhill gives more speed. High speed can be maintained too by jumping in any position on downhill and Spitting out then inhale enemy.
Exit boss stage
You can exit boss stage anytime even if it's 1st time visit. If you exit after you beat boss, you will be back normally and can go to bonus stage without overworld transition. This trick saves about 5 seconds per once compare to ride Warp Star and go back.
Fast drop on water
You can maintain fast down direction speed by releasing Stone ability right before entering water.
Coo Clip
This has been known for a long time but no one could see how this happened at all. Mugg found how to reproduce recently. See here (It's not detailed information but those helped for me).

Memory addresses

AddressSizeDescription
000E1 byte, signedx-axis speed
000D1 byte, unsignedx-axis sub speed
00101 byte, signedy-axis speed
000F1 byte, unsignedy-axis sub speed
00042 bytes, unsignedx-axis position
00031 byte, unsignedx-axis sub position
00072 bytes, unsignedy-axis position
00061 byte, unsignedy-axis sub position
A0851 byte, unsignedBoss HP
DA311 byte, unsignedRNG

About this run

I used Bizhawk but not VBA. Bizhawk can't run Super Game Boy properly as long as I tested, so I decided to use original GB mode. This mode has shorter loading over SGB mode which is part of save time. Major timesavers are better movement, different battle strategy and tricks. In Soulrivers' run, he used star to kill boss. Star is most powerful (10 damage) but he had to wait until boss produced it. Coo Cutter is good ability because not only Coo can move fastest during flying part but also Cutter damage is really good (3-ways shot, it can damage 6).
I made frame comparison spreadsheet. This says 18930 frames (5 minutes and 15 seconds at 60 fps) but due to different fps between Bizhawk and VBA, real savetime amount is about 5:04.

Thanks to

Mugg: For finding coo clip and helping me find RNG address and suggest real improvements.
ISM: I copied many his strategies from his testrun.
日本人向け:ニコニコへの転載はやめてください

Noxxa: Judging.
Noxxa: Accepting to Moons as an improvement to the published run.
sheela901: Processing...

TASVideoAgent
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This topic is for the purpose of discussing #4658: was0x's GB Kirby's Dream Land 2 "100%" in 43:14.97
dekutony
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Woah kirbeh, u r too fast! I vote yes. I'ts sad that you couldn't TAS the game on SGB mode, it would look much much prettier.
Here, my YouTube channel: http://www.youtube.com/user/dekutony
Samsara
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Published run for comparison. I'll have to watch this when I get the time. Looking forward to it!
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Fortranm
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Such a long waited improvement. HYPE
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Whoa, didn't see this coming! That was an enjoyable watch. I really liked the Coo clips and new boss strategies, including hacking away at Dedede! Yes vote for sure, great improvement! Do you think you might work on Dream Land 3 next?
mklip2001
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Great improvement! In retrospect, it seems so obvious to escape out of boss rooms after beating them instead of jumping on the warp star; that saves some serious time. The slope boosts were very noticeable, and the boss strategies were quite good. (Though I'm a little surprised you didn't save Coo for Dedede... I thought you could bring an animal to that fight.) A couple places looked a little less optimized: the room with the ice blocks at the end of 4-2, and the stone usage in 6-4, are the ones that come to mind. But I don't have any specific improvements there.
Used to be a frequent submissions commenter. My new computer has had some issues running emulators, so I've been here more sporadically. Still haven't gotten around to actually TASing yet... I was going to improve Kid Dracula for GB. It seems I was beaten to it, though, with a recent awesome run by Hetfield90 and StarvinStruthers. (http://tasvideos.org/2928M.html.) Thanks to goofydylan8 for running Gargoyle's Quest 2 because I mentioned the game! (http://tasvideos.org/2001M.html) Thanks to feos and MESHUGGAH for taking up runs of Duck Tales 2 because of my old signature! Thanks also to Samsara for finishing a Treasure Master run. From the submission comments:
Shoutouts and thanks to mklip2001 for arguably being the nicest and most supportive person on the forums.
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mklip2001 wrote:
(Though I'm a little surprised you didn't save Coo for Dedede... I thought you could bring an animal to that fight.)
There's a clever aspect of game design in the vertical room right before Dedede. Kirby squeezes through a gap that's just a few pixels too narrow for an animal friend to fit through too, so you're forced to go it alone.
mklip2001
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CoolKirby: Oh, I had forgotten that the gap wouldn't fit any animals. I had never tried to bring an animal when I played the game, so I didn't realize that. Thanks!
Used to be a frequent submissions commenter. My new computer has had some issues running emulators, so I've been here more sporadically. Still haven't gotten around to actually TASing yet... I was going to improve Kid Dracula for GB. It seems I was beaten to it, though, with a recent awesome run by Hetfield90 and StarvinStruthers. (http://tasvideos.org/2928M.html.) Thanks to goofydylan8 for running Gargoyle's Quest 2 because I mentioned the game! (http://tasvideos.org/2001M.html) Thanks to feos and MESHUGGAH for taking up runs of Duck Tales 2 because of my old signature! Thanks also to Samsara for finishing a Treasure Master run. From the submission comments:
Shoutouts and thanks to mklip2001 for arguably being the nicest and most supportive person on the forums.
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CoolKirby wrote:
There's a clever aspect of game design in the vertical room right before Dedede. Kirby squeezes through a gap that's just a few pixels too narrow for an animal friend to fit through too, so you're forced to go it alone.
also, the dark castle have a symetric theme... yes vote, it's been a while that i saw the classic GB green...
Post subject: Movie published
TASVideoAgent
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This movie has been published. The posts before this message apply to the submission, and posts after this message apply to the published movie. ---- [2841] GB Kirby's Dream Land 2 "100%" by illayaya in 43:14.97
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Doesn't this obsolete Soulrivers' run? They have the same goals.
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Publisher issues. We cannot touch SGB when obsoleting it with GB/C (vice versa). So we ask someone higher up to do this.
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Disables Comments and Ratings for the YouTube account. These colours are pretty neato, and also these.
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That makes sense, their system IDs are entirely separate. Thanks for the quick response.