This Beans War
From the Super Mario Wiki, the Mario encyclopedia
This Beans War is the second level of the Minion Quest: The Search for Bowser mode in Mario & Luigi: Superstar Saga + Bowser's Minions. Its name is a play on the phrase "this means war."
Captain Goomba and his squad come across a large group of Beanies that outnumber his group, but they take out the enemies. After beating another and larger group of Beanies, the squad finally comes across two lone Goombas, and they join the squad. Humorously, when Captain Goomba dashes off like a hero but ends up running into a wall, the group makes fun of him behind his back for being stupid, showing their lack of confidence in their leader; despite this, however, they still continue to help him as much as they can.