I've seen an error when I've tried to launch the first level, so after refresh I've tried booting a second one and it worked, it's a fun game, I always like seeing kenney assets in games, I also like the fact that number of clones are caped I believe at 5, as otherwise I could only imagine what kind of madness would on the screen, it took me quite a few minutes to beat this level, though it was a fun exercise