I also found a minor typo in the shop, when you go from the level 3 fuel sucker, to level 4, it says "Level 3 drains 4%" instead of "Level 4 drains 4%" but this probably doesn't matter.
Cake, the cake is most definitely a lie. However, it is NOT luck based, it is entirely possible to get more and more money each day, you have to aim and try to hit the platforms and the coins. $232.37, first day, gg.