Have a look at this roguelite game with a great gameplay mechanic being developed by Jakob Wahlberg.
Developer Jakob Wahlberg has recently shared a couple of WIP videos from his game called Go Mecha Ball. The project is a furious roguelite title being developed with Unity and one of the main gameplay mechanics will let players bounce from walls to get to different areas quickly and deal with enemies. You have to admit that this mechanic looks perfect for this genre and it will probably take time to master.
Wahlberg's main gig is at Moon Studios (creators of Ori and the Blind Forest and Ori and the Will of the Wisps) so Go Mecha Ball is the developer's side project. It'll probably take a while before we can test it ourselves. What do you think about its gameplay? What would you like the developer to add?