I was enjoying this game, but it was definitely hard to keep ahead of the fire and still pick up any boxes. I kept pressing down a second time to try to throw them instead of up, so that didn't help.
Ultimately, I enjoyed the Gameboy aesthetic and had a lot of fun, but my game ended when I got to this ladder next to an obstacle. I wasn't able to climb down it, but the fire also wasn't able to reach me. There I stand, forever immortal.