[challenge] 1st + 2nd levels of my Block Breaker game

Working my way through this course slowly! Here’s what I’ve got so far for my take on the Block Breaker section:

I’m going for an art theme for my game, so I’ve made my own art assets to fit. They look a little bit crusty here, either because Unity’s preview window renders sprites in low quality or because I need to tweak some graphical options somewhere, but they’re fine for now.