The best way to describe Sonic Riders: Zero Gravity is a mixture between the fast paced racing joy that is the Wipeout franchise combined with the loveable characters and fantastic world design of the Sonic franchise.The game really packs a punch in nearly all departments, from the core gameplay to the visual design of the experience, nothing is left un-finished or lacking polish to it.Sonic Adventure 2: Battle Network is a netplay mod for Sonic Adventure 2 PC which is still very much in early development, and not a Sonic/Mega Man Battle Network crossover, unfortunately.