Sonic the Hedgehog 4: Episode II - Episode Metal Lock-On Trailer

SEGA have announced a bonus game of sorts that will only be available to people who own both Sonic the Hedgehog 4: Episode I and Sonic the Hedgehog 4: Episode II.

The title, which is free if you qualify for the promotion, includes four exclusive acts that bridge the gap in the story between Sonic CD and the Sonic 4 saga. In it, you play as Metal Sonic, whose origins are revealed as you progress.

Sonic 4 Episode II, and Episode Metal Lock-On (the bonus), will be available on May 15th for Xbox LIVE Arcade (1200 points / $24), PlayStation Network (AUD$18.25 - probably around $25 in NZ) and Windows PC download (AUD$19.99).