Nice game!
Things I liked:
>The feeling of gliding when I got it right
>Audio: love the wooshing sounds combined with the peaceful music.
>The graphics were quite charming (particularly of the goose itself). Did you even make the fonts yourself?
Things to improve:
>The time rewind could have been a bit more forgiving; I felt I had to use the whole thing up to undo a mistake, any time I only used part of it it just meant I wasn't able to correct the mistake in time (due to the way the movement works) and hence just wasted some of the meter.
>Would have been cool to use the time rewind in a way that wasn't just a quicker restart too I think.
>Hard mode was very hard haha; I tried it a few times before giving up haha, a lot of the time it felt like luck because I would have needed to have dived already by the time I saw a wall approaching, but maybe that was just me not having mastered the game yet haha.
Well done!