Yeah. It basically requires high level of execution from both sides, and if the other's not great the entire operation breaks down.
It made me furious sometimes when I would do things right and she wouldn't, though I shouldn't have gotten angry at all, it's a nice friendly game that has no stakes.
We decided to stop playing this so we won't fight.
It Takes Two is an absolute gem of a co op game and is super casual. It looks really simple on the surface but the devs went all the way in making sure the game stays fresh, interesting, and fun.