This just works as a little clicker game! The first upgrade being to give the slime a face is adorable, and you can see how all the pieces would work together to create an engine in a larger version. Also fun to see the colours of everything randomised on each re-load. The upgrades do become hard to reach quickly, but considering there isn’t a lot of content in the game right now, it doesn’t feel too bad - I know I upgraded a few more times on each tree before realising I’d reached the end of content entirely too soon!