The apps give you a random "extreme" thing to try when you're in the skate park or terrain park

They also come up with combos of tricks that make sense for the different features you're doing them on. So you can tell the app you're going to hit a rail, then a jump, then another rail, and it will put the right sequence of tricks together (accounting for landing with the other foot forward or even landing backwards like in skiing).

They also have difficulty settings so you can learn about some of the most challenging tricks in the different sports. Snowboarding has a "Pro" mode where you're literally rolling tricks they do in the Olympics.

Anyway, here are the links to the products on Google Play

Skate: https://play.google.com/store/apps/details?id=com.senditapps...

Ski: https://play.google.com/store/apps/details?id=com.senditapps...

Snowboarding: https://play.google.com/store/apps/details?id=com.senditapps...