From the Super Mario Wiki
Laughing Loudly is a level in Blubble Lake in the Bowser Jr.'s Journey mode of Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey.
The level has three battles. The first battle has three Crawfuls in the fromt, four Beehosses in the middle, and a Crawful first officer and red Koopa Paratroopa captain in the back. The second battle has the same formation, with a red Koopa Troopa as the first officer and a Crawful as the captain being an exception. The third involves three Crawfuls, two red Koopa Paratroopas, two Beehosses, a Crawful first officer and a red Koopa Paratroopa captain.