Hi, love your game! It was Hard, very hard. here's some feedback;
For me, the camera moves too aggressively, whenever i tried to dodge the falling logs or fire geysers the camera moved so far, i couldn't see in front of me. Also I see, that you make whenever the player doesn't see the entity, it doesn't move (It's not something annoying, just asking - I'm curios). The level design is good, though i would like to play a tutorial rather than reading the "How to play". One thing that annoyed me is that, you can't reset, It's especially bad in the hard parts. Also, you can't heal with already checked spawnpoints - I would change that things. The player could also use some icons for health, energy and cubes - It would help the player recognize these in a level. One last thing, The music was fantastic! It really conveyed energy of a level, but after a bit it starts to get repetitive. You could add some more soundtrack. Overall, I played it for like an hour, I hope to see the full version someday in the future.