Sonic 4 Episode 2 launches on Xbox Live Arcade May 16. GameSpot broke the news yesterday. The trailer, which looks all things Sonic, also provides details on a mini campaign featuring Metal Sonic available free to those who own both Episode 1 and Episode 2. Episode Metal features four new levels and charts the “rebirth of Metal Sonic.”

Episode 2 is likely the last entry in the Sonic 4 series, which was slated as a true sequel to the classic 90s platformers before its release. Series producer Takashi Iizuka told Digital Spy in March that following Episode 2, Sonic Team had no plans to release further games under the Sonic 4 umbrella.

Source: Gamespot via Co-Optimus