Sega is beginning two new collaborations in Phantasy Star Online 2 New Genesis, and also announced a new registered user milestone. The first collaboration is the latest Sonic the Hedgehog collaboration. This time, it's Sonic's birthday. The event has started and you'll be able to find Sonic and friends in the lobby of PSO2 Blocks. There will also be statues of these characters in Central City in the NGS blocks. When the latest big update arrived, opening up the Creative Space and letting players begin building up their own custom islands, Build Parts were introduced. This collaboration also includes a collaboration pack with costumes of Sonic characters and themed Build Parts for Creative Space. Not only are you celebrating Sonic's birthday, but you get to leave a little bit of Sonic on your custom island. The event also includes a limited time quest, Special Training: Green Hill Sprint.