It is an arcade game developed by Tomohiro Nishikado and published in 1978.
It's a simple remake of Space Invaders with Javascript. I wanted to test out Kaboom.js when it was released, but the Kaboom JS project is no longer maintained. It has a fork named KaPlay.
- F : Fullscreen
- ←↑→↓ : Movement
- Space : Shoot
The game can be tested and can be played via Github pages.