love the pixel art style and color palette! had trouble with the jump button just not working after the first few seconds... did I do something wrong? I could keep burrowing down but not get back up.
to be honest i couldn't figure out how to make a working ground collision script and i didn't want to use any tutorials, so instead the player has a limited amount of jumps, indicated by the second number in the hud. the maximum is 99 and you can replenish fuel at The Source.
