Okay, I'm going to explain my rating here: FUN: 3.0/5.0 This game is kind of what I'd expect from a platformer, minus the rhythm aspect. Now, I love platformers, and I find them incredibly fun. This was a fairly decent platformer, especially for being made in 72 hours. I've got a couple gripes: 1. When you start playing, or when you die, you don't spawn in front of a heater. Thus, you'll constantly die unless you move quickly. It feels kind of annoying. 2. There appears to be a pit from which you can't escape in the second screen. There's a trampoline to get out, but it doesn't actually bounce you high enough. INNOVATION: 4.0/5.0 This game has a great concept which is really neat IMHO. I've never seen this in a game before, but I don't feel that it's completely fleshed out yet, so I'm giving this a 4/5. THEME: 3.0/5.0 The game actually fits the theme quite well; as I said before, I've never really seen a platformer / rhythm game executed in this way. However, to me it feels like the rhythm aspect is kind of tacked on. GRAPHICS: 4.5/5.0 The graphics in this game are excellent. I'm very fond of Celeste-style pixel art, and consequently I love the art in this game. It's really well-drawn. Nice job with this. AUDIO: 5.0/5.0 Where the graphics excel, the audio excels even better. As is to be expected from a rhythm game, the music is great. It adds a lot of atmosphere to the snowy mountain aesthetic the game has. OVERALL: 4.0/5.0 Where this game falls short with its gameplay, it more than makes up for it in atmosphere. This is the kind of platformer like Celeste and Cave Story that I could get sucked into if it was longer and had a story. Nice job.
Graphics, and Music are great, Game-play is a bit lacking...
First of all, I'd like to congratulate you on making a solid game in the time allotted. there are a few issues that I believe you are aware of, and there are also some things that I think you could do in the future if you want to expand on this idea to make this game even greater!
Anyways, the first issue I would like to point out was pointed out above me, the spawn point should be on a heater, so that the player is safe to sit there and think out their plan of attack.
On the note of spawn points, the second issue, is that with a game like this, making the spawn point always at the start limits your audience to a nitch that likes games with a bit of a difficulty curve, and you don't necessarily want that... at least not right away. (I'm speaking a bit from my own mistakes here by the way)
That issue leads into another issue I had, and that was quite literally the second room, I wanted to continue past here, but the pit doesn't seem to give you enough jump to make it past the spikes, and I am sure it has to do with timing maybe, but that's not a given, so most of your player-base is going to get stuck here. (including me, at least currently). Anyways, I feel that if you fix this issue, and make the intro longer and more forgiving, the later levels can have this difficulty of re-spawning at the start, which would effectively address 2 of the issues I am pointing out here.
Now up til this point, I've been talking about issues with the game, so these are some more things that aren't necessarily issues, but suggestions to make the game a bit more interesting and fun.
Firstly, I suggest you sync your clock with the music, doing this will add to the atmosphere of a rhythm platformer, and make it feel much better, as the separate ticking from the music is distracting and takes away from the mood, the easiest way to do this is to sync each beat of the songs in question to a single second, which if your game runs at 60fps, ratios of 60:1, meaning 60bpm, 120bpm, 180bpm... etc (This is just the general idea, the most important thing is that both your music and the ticking are in sync with eachother)
Secondly, and this still has to do with keeping the music and ticking in sync, you are going to have to add a buffer after each death, to resync the music with the beat, as the player is not always going to die in 'time', pardon my pun. ;)
Those are my biggest suggestions. I hope you take them into consideration! Loved the art, the music was interesting, but I got distracted by the off sync ticking, keep up the great work! ;)