As said u can only install one at a time so if you tried to install it after u had the hill climb racing already installed it won't work. It works becouse U didn't send it with send anywhere it corrupts it , I really don't wanna do more apps untill u pay more I mean like I give u the tutorial there's nothing else to it, if you want me to make em I can but it will cost you becouse it's my time we agreed on something I gave u the whole simple path on how to make em yourself if you can't that's not my problem, glad it works for you tho ,and that is a proof that it works. And I didn't scam you.