Arrow keys - Move space ship
(X) - Fire at everything
You won't believe it, but Space Battle is a shoot 'em up. Besides different enemies (and bosses), it offers various extras (explained in the opening credits), more firepower, a high score list and a cheesy background story.
Triggered by @Krystman's SHMUP tutorial on his Lazy Dev YouTube channel, I thought it would be a good idea to program a game together with my ten-year-old son and teach him a little programming logic along the way. He was immediately hooked, but was more interested in the sprite editor and kept coming up with enemies, bullets and new ideas for a few extras. In any case, we both had a lot of fun.
But since I am absolutely unmusical, we did without background music. Maybe I'll find some time to practise before the next game. Just think of some music in the style of Katakis on the C64. :-)
I hope you like it.
Thanks to @extar for reviewing the game. I implemented your suggestion to insert a small pause before the Game Over screen appears.