I must be a little rusty lol, took me like 20 tries to get past that first jump section with the lava haha. Fun and challenging for sure! I like the look of the game with the fixed wide camera too. Perhaps add a bit more linear drag/friction on your player character or lower deceleration, feels a bit slippery like walking on ice. But maybe that's intended, but many think slippery controls are taboo haha. If you make it look like it's a snow world that would sell the feel for sure too. Great job making a cool platformer game! Please check out mine if you have time.