Donnny5

Sooo the game was 2D style I believe (not 100% sure) it had an arcade sort of narrative as I remember for sure there were 8-10 floors (of a spaceship I suppose) and you had to also think how to get through each level, do something besides killing aliens like collecting some items or something. There was more to it but I don't remember precisely the details but what I remember is the dominant black color of environment with only some blue and perhaps other colors. The graphics was pretty basic as I think you could see non-sharp lines/contours of things. My cousin used to play it some 10-15 years ago and so I guess the game is 15+ years old ('90s).
He played it on a pretty shitty computer with windows 98 on it.