The first time Xavier Harris, 21, visited the new skate park in Jersey City, N.J., it was July, and the course was still being built. So he scaled a temporary fence to get inside.

Skate City: New York is a side-scroller like its predecessor, so it’s fairly simple to start, and all of the tricks use various swipes, holds or taps on the screen.This is all taught to you in a few ...