Hi, there's a kickstarter running for Shadow Gangs a 2d shinobi style beat-em-up.
Iv'e been following this one for a while and decided to pledge.
Its pc, mac, linux with a possible Dreamcast port. Other consoles are supported in the stretch goals.
I think it's a lot of fun, there's a proper playable demo available too. It's downloadable from the kickstarter page. Try before you buy, no bad thing.
Well I'm hoping for a Dreamcast release myself- the Dc needs a game like this imo.
Here's the link https://www.kickstarter.com/projects/1858040208/shadow-gangs-80s-ninja-arcade-action-revival
Yes... it has ninja's in it...