A fun little game! All it needed was a little polish – I think a little stockpile of gusts would help massively, so you can use two or three in quick succession if you’re otherwise not panicking. Oh, and I think if a pebble gets blown up, it seems to still count as summiting? So that’s a little issue; otherwise I think it’s solid!
Tiny gripe: the controls weren’t intuitive to me, would have definitely preferred hold-release over double-clicking to aim and launch a gust. But that’s a subjective thing.