He learned or will learn new skills, and stuff that will assist him in new games in the future, go look at all the sonic games that have Sonic the Hedgehog in them and you will see that sonic learns new things like these things, I know sonic has Spin dash, Spin attack, Homing attack, light speed dash, Speed Break, Time Break, Aqua sphere, Fire sphere, Ring time, Gravity Dive, Meteor burst, Super Sonic, Darkspine Sonic, Darksuper Sonic, Hyper Sonic, Sonic the Werehog, Excabular Sonic, non-Sega made transformation's(Dark Hyper Sonic, Fury Sonic, Tron Sonic, Female Sonic, Ultra Sonic, Sonic the cat, Fleetway Super Sonic, Fleetway Hyper Sonic, Fire Sonic) That's all I know so had my answer helped you out I bet it did.
The anagram of sonic the hedgehog "sonic the hedgehog."
sonic the hedgehog
sonic the hedgehog
Sonic the Hedgehog
Sonic the. Hedgehog
Sonic the Hedgehog
Sonic the Hedgehog
Sonic the Hedgehog
sonic the hedgehog
sonic the hedgehog
Adventures of Sonic the Hedgehog Sonic The Hedgehog(SatAM) Sonic Underground Sonic the Hedgehog The Movie Sonic X
sonic the hedgehog