This games pretty well polished in it's mechanics and gameplay loop, especially for your first game jam. Plus the concept has some interesting puzzle mechanics introduced just in the small amount of content in the game currently. Some feedback specifically though:
- The games gravity feels a bit too heavy, at least in relation to how high some of the platforms are in relation to each other. Which makes a few of the jumps very sensitive to exactly where you are at when you attempt them.
- Most of the mechanics of the game are explained pretty unobtrusively through ingame prompts and the level design. Except for the mechanic where a platform disappears if it comes into contact with another platform. Which lead to me wondering what happened on the first 40 platform. I feel like maybe making it easier to see the blocking platform could help with this. Either by changing the camera view or by changing the location and distance from the player of said platform. The mechanic itself has a ton of potential tho.
- As well the hitbox of the player seems to be a bit weird and a bit glitchy with how it interacts with the environment leading to some weird behavior on edges and jumping up edges. Tho that's down to tweaking etc.