I love it ^^ the player handles and looks amazing, the abilities are intuitive and make traversing more fun. The music/sfx and art are great. I didn't experience any bugs so very well made there. Apart from perhaps the shadows bug that you mentioned, but I wasn't sure what things are supposed to look like so really it wasn't a big deal.
The only thing feel like commenting on is the respawning after falling on spikes, a few times I got locked into falling into spikes, but it wasn't game ruining because the respawn is so fast, just mildly annoying I guess. Overall I liked it a lot I got 9/9 memos! :) really good theme/story