That's a rare sight, though. Marisa-chan, playing in the dirt without any of 'em bullets?

Yup. It's summer break, after all.

I'm teaching her! I'm tooootally her senpai when it comes to playing!

What she said.

Ho ho hoo I see. Well then, senpai, what do you have for us next?

Oh, umm...

Tadaah!

A water bottle from the Outside World!

Apparently you can make it into a rocket!