Movement felt extremely smooth, difficulty felt just right, and the background music is very nice! I managed to get to 2100m before drowning. I guess the only feedback I had is that the game mechanics can be expanded upon, but I get that game jam time limits make it hard to add much. If there was time, maybe adding extra movement abilities or rewards after surviving for a while would add a lot to the game. Overall, quite an enjoyable and polished experience!