This is the SDCC Exclusive Mega Man #24 Variant Cover
At the San Diego Comic-Con in July, Archie Comics will be selling a special event-exclusive variant of Mega Man #24 (first issue of the "Worlds Collide" arc). It's a simple little cover with Sonic's buckled shoes and Mega Man's helmet. Certainly an interesting change of pace from the usual dramatic poses.
The issue will run you a cool $10. Copies are limited so grab it when you can!