Funnily enough, this is also my first jam and game, and one of my original ideas when brainstorming at the start was pretty much exactly this lol. Loved it. I'll keep it in mind to play when you update it. Great job! I liked how there was an alternate, faster solution if you figured out earlier than you have to that you should use yourself to climb up a section (that sounds so obvious reading it back but I got caught up in using myself in the water because of how you introduce the mechanic). I was gonna say I'd like to be able to get rid of blocks (froze one on top of the first spawn point that was a bit annoying), but I see ur already planning on working on that.
Also loved the art!