Trust Xbox.com to leak screenshots of Sonic the Hedgehog 4: Episode 2 before SEGA's given us more than a teaser and some concept art.

The screenshots — all embedded below for your pleasure — show Sonic and Tails engaging in some, er, co-op action, with online and offline options available.

Sonic fans will pick up on any number of references: the tubular Special Stage first seen in Sonic the Hedgehog 2 returns for about the millionth time, but on the whole the game seems to share more in common with Sonic the Hedgehog 3 than others, with stages that resemble Carnival Night and Marble Garden revealed, plus a downhill snow section that's a little reminiscent of Ice Cap. Sonic 4 will offer four zones in total, so we still have some surprises to come our way.

Feast your eyes on the screens below and prepare your PSN wallet for some spiky action later this year.