Opening The Yoshi Theater - M & L Superstar Saga Part 18 

This beanstar piece is so odd. If you know the bean fruit locations you can get them as soon as you learn the hammer moves, but a few pieces are locked behind hammer upgrades and learning the hand moves. You also can’t access the theater without the hand moves and for some reason you can’t fight piranha bean until you specifically talk to the old man in the theater who tells you about the bean fruit locations.