Major flaws
The challenges don’t work: on the first challenge you have to break 3 blocks with a number over 10 on them, however it doesn’t count them and so you end up playing forever. Same thing with the other challenges. The counting doesn’t work. Also when you are playing levels the background colour is not always black, it changes. This probably wouldn’t be a problem if the colours weren’t so bright. Combined with the basically neon colours of the blocks the game starts to hurt my eyes and it’s hard to see what is going on.