The line are style works really well, feels very handmade which is nice. The idea of the balloon lofting in the wind is interesting, I like the joint mechanics of how it reacts when running into obstacles.
From a gameplay standpoint though (which is not this round’s purpose, to be fair) is it feels very slow and fairly simple, as I can’t control the speed and I have plenty of time to change the height. Maybe that could give room to layer on some other mechanic, so it’s almost like you are doing something else (building/crafting?) and then have to go back in time to keep the balloon position. Anyhow, just spitballin’.