To be honest, I didn't notice the space pirate change apart from there being 1 more pirate near the end, you could've made it more pronounced, and possibly change the number of meteors as well (for some reason I felt like the meteors decreased near the end? Maybe you accidentally swapped 'hard rock' and 'soft rock'?) Maybe also make more smaller meteors spawn near the beginning. One final thing: please add an option to make bullets bigger, it was so hard to aim at stuff!