Wow, this is a great game! I love the CRT filter, gives it a great retro arcade feel, the variety of enemies and powerups is fantastic, and there's a ton of content here. It certainly gets challenging at times if you don't have the right set of powerups by the later stages, and I would've liked to see a way for your 'on spawn' abilities to be triggered during the boss fights so they didn't become useless. Controls are responsive, and presentation is great, well done!