...i bet luigi would only offer help if you asked for it, y'know?
He'd be like, "here's some picross puzzles I made, I hope you like them!" and then he'd just, sit there, and maybe worry ab it if you were struggling, but he'd be so happy when you beat it, and if you looked like you were struggling he'd only offer help if like, you ran outta time the first time, or if you looked at him for help. He'd be chill.