Super Nova is a decent shooter by Virtanen Games, in which you can use the left and right arrow keys to move around while shooting at enemies appearing from a distance. There are quite a number of power-ups to collect but difficulty is rather high and it can be tough to stay alive for longer than a few minutes.

Hold the control key to shoot and use the left shift key for a boost which slows down the speed of all objects temporarily.

Name: Super Nova
Developer: Virtanen Games
Category: Shooter
Type: Freeware
Size: 5MB