Basically you both deal half damage (or the enemies/bosses have twice health) but you get a very good benefit of being able to save each other when you die. Personally I don't think it's harder and balances out pretty well.

It has coop? Awesome thanks. We have plenty of time for the challenge lol

Yes it has co-op, although co-op tends to be harder than single player.

We’re running out of fun coop games to play on switch and I thought this might be fun. It’s a hard game, I know, but that’s part of the fun.

I’m debating on getting this game for my gf and I to play on the Switch. Does it have coop? Recommended to play controller switching?