The Rumbla Island Seesaw Puzzle tasks players with finding a way to get two red berries in Mario & Luigi: The Brothership. The only way to do so is to position the seesaws in a way that lets Mario and Luigi get those berries. Unfortunately, that’s a lot easier said than done. To do this, players have to pay close attention to what they’re doing before acting on it. Sometimes, being quick isn’t the best idea.

https://screenrant.com/mario-luigi-brothership-all-rumbla-island-seesaw-puzzle-solutions/