Irukandji means squid. This is a game about flying neon space squid that shoot lazers. That's awesome. In this game you shoot to an angle left, or to an angle right, which makes it a little different from other shmups
The sequel to Irukandji is a work in progress. This version has constant auto-fire bullets and is controlled with the mouse instead of the arrow keys. Of course, there are more neon squids in space, which is still awesome.