It's hard to articulate but using a cursor as a crosshair is always difficult. However, here it's the speed of the enemies.
Like I said, I don't know how to balance it as if you make them too slow, it'd be too easy.
Hm... I could not think of any other way to make a movable crosshair on Game Boy.
Hello, excellent work! A suggestion for aiming would be like the one in the SNES game Wild Guns. One button to shoot. Another button to hold to aim. You could even add two taps to the side to dodge.
I haven't played Wild Guns yet. But I'm going to look into that. Thanks a lot for the suggestion :)