This is a 1985 shooting game. You are astronaut Luke Laser and you are stuck in the maze of the N-Chance world. You're stuck in the lower level of N-chance and are wanted by the real dumb Tobors. When they get close, you easily blow them up in No-Tobor-Anymore (NTA) mode and move on to the next level, where an equally thick bunch of tobors are trying to get you. Going around and going down the labyrinth with a laser, you go to the next level.
Now these Super Tobors start working together and they almost get you before you turn them into an NTA. On the next level you will find more Tabors and some of them are active with nukes and when they flare up they shoot back. Now you run up, down, left, right and shoot in all directions.
After all, it's NTA and you get to the top level and you're bombarded with smart, aggressive gangs shooting at you. Come on, Luke, nuke it or be nuke. With a high score table, this is the shooting game of all shooting games.