1... 2... 3... KICK IT! is a rhythm/skydiving game. It's AaaaaAAaaaAAAaaAAAAaAAAAA!!! but the level design is set to music.
It's permanently stuck in early access, but oddly has been developed a bit over the years. It's gone through 2 or 3 major engine rewrites, but seems to be stuck in very early development anyway. Don't buy it if you expect a 'finished' game experience.
There are a few songs made for the game, which are decent.
You can hand it your music library and it'll try to generate levels based on that, but the music analyzer is buggy.
That's about all I can say about it because there's not that much to do in the game. While A Reckless Disregard for Gravity had point-collecting and levels to unlock, this game can't really do that because of how random the level design is. There's no progression and no sense of achievement because the game experience varies wildly depending on the randomness of the level generator.
The difficulty is pretty pointless because there's no death or failure state, just less points than you would have had for doing well. Also, there's no rating system or metric for how well you did, just an arbitrary number (and the devs have rewritten the scoring system a few times as well). If I get a 'high' score, I don't know if I actually did well or the song was just easier than most. Often, longer songs will net you more points by default because you get a few points per second, and longer song = more time to get points.
I just can't recommend the game because even though it seems like a decent concept, it doesn't have that much potential and it seems to be totally dead.
To be a game I'd recommend, it would need:
-an entirely different music analysis/level generator that actually makes sense for the song
-a scoring system that can tell you how well you did vs. the difficulty and length of the song
-some way to actually progress or increase difficulty over time, some way to actually fail a song
-something that actually makes you move with the rhythm, like osu! or audiosurf. Playing with full audio is no different from having the music muted because the music only affects the quantity of obstacles, not their placement or their difficulty.
And if the dev team hasn't done this in the last 4-ish years it's probably not going to happen anytime soon.
The problem is that even if this game escapes 'early access' status and fixes these issues, it doesn't seem like it could ever be as fun as AaaaaAAaaaAAAaaAAAAaAAAAA!!! which still makes this a game I can't recommend. It has some potential, but when compared with other rhythm games or other arcade games, it just won't compete even as a 'finished' product. AaaaaAA only works because of the fluidity and uniqueness of the level design, and if you take that away or leave it up to a music analyzer, you remove the challenge of AaaaaAA and make it repetitive because all levels have to be (about) the same.
Ultimately, you should only buy it if you are a die-hard Dejobaan fan for completion's sake.