I really enjoyed my time in Ninja Survivors. The roguelike combat is super fun and fast paced. Sometimes I did find it to get a bit overwhelming on the eyes, and I couldn't keep track of where I was anymore when things got pretty hectic.
I do think that the co-op feature of the game is fun though, I haven't played one of these games where they have online play with others before, so that was pretty cool.
I think everyone should try this game if you enjoy games like 20 Minutes Till Dawn, It's basically like that but with cute ninja characters.