This game is really cool XD
I really like the musics XD
I also like the levels. It's well designed. The fire tile really makes the player think to jump on that tile or not. The orb key also used pretty well in this game. I like when if the player collect it too much, the game become harder because of the lock tile gone.
The speed run and fire challenge also make this game become so much enjoyable. XD
This is my two best achievements on the speed run and fire challenge XD

It's hard to do. But, really worth it XD

But, I think the time in the speed run challenge is really tight. Especially the lonely level on the right. My best time at that level is 11.40 s. But, I can't really understand how to beat it in 11 s. Maybe you can make it +0.5 s or just stop the time when the player reach the door. Because the time is still running when the scene change animation play. :'

Really enjoyed the music and the aesthetics of the game. And the intro is perfect!