Mario and Luigi come out of the castle and into the pipe that leads to underground.
Mario: I wonder where this pipe goes.
Luigi: Me too.
They come out of the pipe underground.
Luigi: Wow, we're underground? Usually we would plumb here.
Mario: Yeah, but it's not like when we were plumbing underground. Let's get past this part.
Mario got a Question mark and he got a fire flower.
Mario: Oh yeah.
Mario fires at the enemies while running.
Luigi gets a star from the question block.
Luigi: Lucky me I got a star!
Luigi destroys most of the enemies with his star power while Mario finished them off.
Mario: Oh yes!
Later the Star Power wore off.
Mario and Luigi: Yes! We got all the enemies. To the pipe!
Mario and Luigi go through the pipe and to the over world.
Mario and Luigi: Alright! 2 levels down. 2 to go!
They get the flag and go to the checkpoint castle.