I'll start this review by saying I'm pretty bad at bullet hell style games, but even so I had a pretty good time with Aliencruise.
Gameplay is what you'd expect from this type of game, extremely reminiscent of gradius on the NES. The art style is simplistic and brings to mind pop-up books or paper cut outs, however it has a sort of unique charm to it.
It's extremely short, I believe there were only 8 or 9 levels, and the replay value is quite low in my opinion. I would often find myself going back to previous levels to collect the power ups of my preference, as some of the later levels are quite sparing with the power ups they give you.
Overall I'd say play it if you enjoy this type of game, but I wouldn't say it's an "easy" completion for most people.
Completion time 2-6hrs (depending on your skill level)