Actually a ton of fun. If you love bullet hells or raid fights in MMOs. There's a lot of keep track of in this adorably cute and funny game. Found the demo to be a lot easier than the full game. Even on normal (2nd lowest of 4 difficulties) things get chaotic, so Steel Yourself!

There's online play and couch co-op.

Update: This game be played entirely solo or co-op. It's fun playing with a friend(s) and trying to coordinate, but comms are not necessary to beat fights. So playing online with others is still a good time. Solo play has special versions of each fight, so the encounters will be kinda same but different.

If you're an FFXIV raider, you'll be right at home here.