Coming in the wake of Shovel Knight, another game channeling Mega Man's design sensibilities (more like Mega Man 1 than 2, though):
Dr. Green is a side-scrolling action-platformer with 8 stages, each with a boss. I'm not yet sure if you can do the stages in any order, but it's very likely given the developer's main inspiration. Great news for me, he likes the idea of giving players few if any checkpoints, and seems more likely to be working with 1cc play in mind than most other Steam developers. Not only that, but the music's great and the visuals are good too, quite readable. It's a newcomer to Greenlight, along with stuff like
In The Kingdom.