Sonic the Hedgehog 4 video leaked

Those lovely chaps over at 1UP have managed to get hold of a shaky cam (has no one heard of a tripod, or even standing still?) video for the alpha build of Sonic the Hedgehog 4.

Back to his 2D glory days, expect Sonic to reappear on Wii, PlayStation 3 and Xbox 360 this summer as a digital download. We cannot wait!

Check it the video after the jump.

[Video courtesy of 1UP]