Died 40 times to get good enough to have enough fuel to sell & finally upgrade the hull then pressed enter to see if the upgrade carried over. It didn't, so I gave up playing. It's really cool to see such a well-polished game, but I think more time should have been spent on the base gameplay, considering how frustrating it is, before the visuals get polished. Also, fuel #2 feels entirely pointless, since it's too weak to be used to help land, while at the same time running out way too quickly. If the point of it was to be intentionally useless but worth a ton of money, why not just have a separate storage tank for a 'gold' liquid you can find?