Alright, current WR holder here. Time for a text wall.

Course 1: Just follow everything in this video, especially the super tight jump at the end. You probably have this course down pat though, especially if you have a 19.29. Make sure you dash as soon as you can out of the water and the slides.

Course 2: Until 14 seconds in, just follow the video exactly. Try to be off the ground as little as possible during the jumps around 0:12-0:13, because you run faster than you move in the air. At 0:14, if you wait until the last possible second to jump off the raised platform, and then float and puff at the right time, you can get away with only doing it once, which saves a significant amount of time. Practice this jump. At 0:17, just make sure you dash immediately after hitting the ground both times. For the two jumps at 0:20 and 0:21, jump up and touch the opposite wall then do a single float and puff the other way. This is the fastest method to reverse direction. It's shown in the video. At 0:26, make sure you jump and hit your head on the ceiling right before the ladder. Because you can only grab ladders once you start accelerating downwards, this assures that you start climbing at the highest possible point. Jump off the ladder to the top instead of climbing all the way as well, this also saves time. Now the jump at 0:28 is difficult, but is very manageable and also extremely critical to getting a good time on this course. Just practice until you've got it down. Again, then just make sure you dash as soon as you hit the ground for the rest of the course and you're golden.

Course 3: Now the video for this is a TAS and as such, the time is extremely unrealistic. But it does show a few key concepts. First off, you probably already know to use Wing, it's the fastest ability. But the two things that make it the fastest are:

1. Your drastically increased speed in the air. As opposed to the previous two courses, in this one you're going to want to try to stay in the air as much as possible, so plan your flaps carefully so you don't crash into walls and lose time.
2. What I call jump-canceled Dive Bombs, or JC Dive Bombs for short. If you hold down and mash A and B alternately very quickly, you'll rise faster than simply mashing A. You probably already know this because it's pretty much mandatory to get a 39-second time, but abuse it as much as you can. How good you are at this basically determines your time for this course. Anyways, for the first 13 seconds don't try to copy any of the fancy movement the TAS does, just do it your own way and it'll probably be fine. At 0:14 however, while you JC Dive Bomb upwards, make sure you're already moving right at essentially the halfway point. This is because from my experience, it takes a bit for the Wing ability to accelerate and it'll allow you to move right over the water as fast as possible. Now it doesn't matter what series of flaps you do, just try to land on the right bricks without bumping into anything or landing. What the video starts doing at 0:17 is very important, however, because if you pause when Kirby is touching the block but hasn't started his landing animation yet, he will go right through upon unpausing. These are more important than you think, because from what I can tell each successful "pause skip" saves about half a second since Kirby's momentum doesn't stop. Personally, I don't try the first skip; I land and position myself for the next two, and try to do the next two. Missing these doesn't kill your run though, I got 38.44 on my WR run only getting one skip. Keep in mind the WR for course 3 is 36.50 (though it's unverified, I think it's definitely possible). Don't take the bottom path and break the blocks with flaps like the TAS does. I've tried it and I don't think it's humanly viable. Instead, take the top path and break the topmost block of the second column with a Feather Gun. If you do this right, you shouldn't lose any momentum and be able to keep going fast. After you go up, make sure you drift right like the video does at 0:29. This way, you can get more momentum to go left afterwards. Another thing worth noting is I don't land at the top of this segment like the TAS does, so I have lower flaps when I get to the bottom. So I drift left into the corridor at 0:30 and rapidly flap 4 times to get maximum speed while avoiding bumping into the ceiling. You can do this, or find something else that works for you, doesn't matter. Make sure to do the jump through the air hole the video does at 0:32. I personally have never done what the TAS does upon jumping out of the water at 0:33, but when I look at it again it does look viable and probably faster than what I did. Try it out and tell me how it goes for you. Like the video does, try to hit the edge of the platforms as you're falling so you can turn around and reverse your momentum faster. Do the JC Dive Bombs upwards as fast as you can, and there you go! Again, for course 3 the video is TAS and a lot of things in there aren't humanly viable. But it should serve as a nice guideline to help you.

I hope this helped. Good luck beating me and Anwonu, and if you beat me I might come back and try to get a faster time C:<

What's the optimal ability for this course? I'd guess it's probably Wing because that's what the TAS uses but I found an old run of Crono's which uses Ninja.