This is Galaga (A game by Namaco from the 80's). If you've played Galaga on the Nintendo NES classic you'd know it's fun. I've done my best to bring that fun over to this version. The graphics are mine (except for the explosion) - I experimented with 8-bit pixel art. Use the arrow keys to move and space to shoot. Press R to retry. If you like this game give it a heart and a star. Please report any bugs as I made this in about four hours and therefore there are bound to be some.
I realized a while ago - I meant to call this Gradius! However, it's been uploaded for half a year as I'm writing this, so it's WAY too late to change it now.