Overall this was below my expectations. I expected a fast-paced shooter, but the movement was sluggish and buggy and shooting the gun gave no feedback. The implementation of the theme was sub-par. More percent chance of completing a level? Well, sure, but that's not very innovative of you, mate. Probuilder level designing has its style (I think someone's watched too much Dani) but I prefer other. On the other hand, your level design was fun and intriguing, but was sadly brought down a bit by the above. The music in it was great though.