Looks nice but it crashed almost immediatly when I jumped over the first hole. I tried the game on Firefox and Mac. Also it is not 1-bit since it has more than two colours. Only black and white is allowed, not gray.

Cool platformer with great ideas. I got stuck already at the second level, where there is two pipes. I was able to open the door with the box but never able to pass the  2 enemies with the 2 pipes above. (The game is pretty difficult indeed)

It would be great if attacking would make us stop directly.  I was often holding X while moving so nothing happened.

The fire is an interesting mechanic but I feel like you should reduce a bit the throwing intervall to make it fair. 

Also, I got stuck several times cause of the box. When It hit a wall, there is no way of pushing it in the other side.  Maybe a carrying mechanic would be somehow appreciable.

I really enjoyed the pixel art , and the musics were insane -- It wasn't looping sadly :( 

Great submission overall !

Not 1 bit.