The concept is cool, I love the art direction.
As it was said a few times, a tutorial would help. Understanding that G is for fuel took me a while, a few icons would make this much smoother.
Some commands felt unresponsive, I didn't understand what, if anything, was really happening at times. I don't know if it's a bug but sometimes the sound effects didn't trigger when pressing a movement key, so it also contributed to that feeling.
I keep pressing forward but nothing seems to happen except losing fuel, am I missing something?