A-Inv is an extremely small game in terms of size on disk, as it will take up only 15kB of data on your disk, but it is very intriguing that in this size the developers were able to include a nice gameplay and also three dimensional graphics with good enough textures.
Unfortunately, there is a downside to the game, as it does not feature sound effects, but you will still be able to have a nice time. The gameplay is simple, as you will have to shoot down as many UFOs as you can in one minute in order to set a high score.
