I just bought it today and am having fun with it. If you enjoy platform side-scrollers like Megaman, you’ll enjoy this too. If you suck at those types of games like me, there’s an easy mode that makes things more bearable without making it too easy.
There are 8 stages/bosses, and I’ve completed two of them. There’s pretty well-incentivized replay value due to certain collectibles that help you unlock upgrades. Those purchasable upgrades also change up the gameplay, meaning that you can customize the gaming to your liking by choosing which upgrades to purchase. I’m having fun with it so far. :)