Neat game! I like the variety of different power-ups and locations. The area with the piles of dead creatures was quite memorable. I also like how the level design directs the player, particularly after getting the glide ability.
The furthest I got was obtaining the dash ability I assumed it would be used to bypass the "<" blocks but it didn't seem to do anything. Then I accidentally dashed into the fire and died... Let me know if I'm missing something. I'd like to try again and reach the end.
That leads into my main complaint though: The lack of checkpoints. Having to restart the whole game when dying is very discouraging. A map would be nice too, but that's not such a big deal since I learnt the layout of the world well enough without one.