I completely agree.
It wasn't a perfect game, far from it. The purple flying enemies are more annoying than fun to fight, Hit box was probably a bit too precise. But even with those things in mind, it still felt like a fun game. For the most part, gameplay felt fluent, and the dialogue felt well written. Story a bit cliche though.

But for 5 bucks, depending on where you got it, I'd say its worth the money, 12 might be stretching it a bit, just because of the shortness of the game.