It might just be a bug for me but the game was just a small rectangle in the upper left corner, other than that a great game, it just needs a better elgorithm for generating boxes cause i just died with 0 fuel and there were no boxes down.
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It's a bug in export from Godot that i haven't been able to fix. (and I wrote that at the game's page)
The executable version should be working fine.
The current algorithm is that every move it has 1/5 chance of generating a box.
If i decide to make the game bigger and better, I'll definitely make it more balanced.