I liked the overall game and level design. I think you captured the "collect X to continue" kind of gameplay well.
I initially took the "there are no boundaries" as a challenge and fell off the world by trying to climb a steep mountain XD but I was able to restart and collect everything to beat the game. I think the ability to rotate the camera would have been a nice quality-of-life feature, but the game was playable as is, just made me do a little more exploration and check out all of the paths.