Small but good enough demo you have here. Nothing relevant to add: I mean, if you ever played the previous chapters, this hack's aim is to see how many times you can press F4 before your keyboard crashes.
Sillyness apart, this was a good go. Worth accepting; some personal instances here, feel free to apply my suggestions or not:
- Very nipticky, look the roto disc at the bottom left. It passes between priority on/off tiles on its trajectory, and it looks a bit weird. Again, extreme niptick. Feel free to ignore, but I'd be cool if you could attempt a fix to not make it weird.
- This huge motherfhacker here. Peek the asm file of it and decrease the fastest projectile's speed. The coder was drunk when setting the speed of the fastest one, since you can NEVER avoid it due to how fast it is.
- Last castle: Imo, the difficulty curve goes way too high with this. Personal tip: put this castle in a further world (maybe 3 or 4), and make an easier castle for world 1. This way, the difficulty curve would overall be better.