To free Chaos Emeralds and gain their power, letting Sonic turn into his golden Super Sonic form, you will need to claim Vault Keys.

Sonic Adventure 2 at IGN: walkthroughs, items, maps, video tips, and strategies ...

In this regular feature, we add the most interesting new mobile game soft launches for you to keep an eye on - or even try for yourself - as you look for learnings and inspiration that could inform ...