Mega Man Revolution - A fan-made 8-bit-style Megaman side scrolling shooter game.
Altered Beast - Altered Beast is an Action-Adventure, Side-Scrolling, Beat-em-up, Single and Multiplayer video game developed and published by Sega.
Hollow Knight - Descend into the Dark Venture down into a beautiful, ruined world of insects and heroes
Foul Play - Foul Play is an Action-Adventure Beat-em-up, Side-Scrolling, Co-op, Single and Multiplayer video game developed by Mediatonic and published by Devolver Digital.
Megaman Origins - Between MM3 and MM4 there was a MM adventure, never told, until now:
Butcher - Butcher offers a mix of 2D Action, Side-scroll Perspective, Pixel Graphics, and Adventure gameplay elements, developed by Phobia Game Studio for Multiple Platforms.