That took a lot of fiddling about to understand how the climbing worked. But once I figured it out it was fairly smooth going from there, got a time of about 5 minutes. The camera is a little tricky and fights you a bit while climbing making it hard to see here you are going, and it felt like I wasn't jumping properly every time I tried to jump, like it worked sometimes but not always. Probably just user error.
I liked the simple low poly level design with 2d sprite animations for the character. It was an enjoyable little challenge, the snow falling when you start getting to the higher elevations was a great touch.
My only real suggestions going forward if you put anymore work into the project is to wrangle that camera a little more so it doesn't completely block your view while climbing and tweak the gravely and movement speed a tad bit, it feels kind of sluggish and floaty, wich for a small character like a mouse a little floatyness can be appropriate, but I feel like it was a little too floaty with how slow moving the character is on land. climbing felt just fine though when the camera behaved.