Pretty awesome and well-balanced game! Controls are spot-on, I'm a sucker for pixelated adventure games and the music is very nice. Difficulty is spot-on as well, it's really tricky, but it never feels too tiring to get through difficult spots. Really good effort! I do have to admit, I'm now in the Shrine and I'm now at the point that I'm getting annoyed too much.
Spoiler below (screenshot did not work)
I'm in the area where you have to hop between the 'slow lasers' just before an upward river with fast moving black blobs.