Interesting mechanic! Simple and fun to use. I'd love to see it developed a bit further.

Beautifully captures the aesthetic of a Gameboy game.

An excellent game showcasing what you can achieve within the harsh limitations you had selected for the jam!

I'd love to be able to move the ship around more, beyond the confines of the screen boundary, and the game camera track the ship. Your update at 1GAM Galway already improved the moment alot. I'd love to see it here too!

Another suggestion, maybe your score could also increase for trapping/teleporting/destroying opponent ships.