This is a pretty fun early space shooter, and once you get used to the strange controls, it's pretty simple and easy to pick up and play. I enjoy games that are like that, but the problem with simplicity in this case is that it can start to drag on and get boring after a while, since you're repeating the same 2 repetitive level structures throughout the whole thing. Still, I quite like this one. It certainly stands out, compared to the other shooters on the Master System. It's simple fun, and definitely worth picking up if you ever find it.