Hey, thanks, glad you liked it! Yeah, with that many sprites going on, the Game Boy doesn't enjoy it all that much. It is a point I want to tackle when optimizing, thank you for the input!
Hey, glad you enjoyed it! The enemies going too low is a thing that is supposed to happen, there is a way to shoot down, but in the demo I didn't teach about it, so that's my bad, sorry! (PS the down shoot doesn't have collisions anyway in the demo...oops)