I'm not a fan of mobile games generally. Too much focus on monetization, small screen, and I prefer a game controller over a finger on a small screen.

That said, I strongly recommend Rayman Jungle Run and Rayman Fiesta Run. They're just $3 each, tons of levels,no need to spend IAP, and they look and sound just like the console games Rayman Origins and Legends. The gameplay is tuned for mobile though, he runs constantly and you tap two buttons to punch and jump. I also hear good things about Eden Obscura.

youtube.com/wa...k6DhDA

play.google.com/st...mobile

play.google.com/st...starun

play.google.com/st...bscura