Loved this. On top of fun gameplay you also used asset pack that Iove and in the end you have a really nice looking prototype. There were a few small bugs and performance pitfalls but overall game was very addictive and fun to play. One of the pitfalls was that for the first upgrade the game froze a bit and thats probably because you were loading those upgrades. I think you would need to preload those resources earlier or maybe on game start. There are definitely more information on the internet. But the UI screen with upgrades looked great, loved that that it was "alive" rather than static. And the cutscene at the beginning was also a really nice touch.