Not a bad freemium endless runner here...
Gameplay: Its fast and full of things, you can double jump and each character has a certain ability that makes him fly and crush imps, vamps and zombies. And other creatures of the night too. You have a health bar and can resist 3 hits before dying. There are power ups,...
Looks like Limbo and its a good thing for me.
IAP: On my first run I collected 129 coins but the cool costumes costs like 1,000,000 or 2,000,000 so yeah that will be a huge grind. Also upgrading the first set of skills for the main character (Harry Potter!?!?) is useless because it pricey and its better to buy a new character altogether which comes with perks upgraded. Same like in TR2, pay with something to revive,... and all.
I dont know what else to say, its free so try it?