A Goddess Comes to Japan (Part 2: The Hot Spring)

A Goddess Comes to Japan (Part 2: The Hot Spring) (女神の来日(温泉編), Megami no Rainichi (Onsen Hen)) is the ninth episode of the anime series Full Metal Panic? Fumoffu.

Summary
Sousuke, Chidori, Tessa, Kurz, Melissa, and their friends travel to an onsen (hot springs) for some rest and relaxation before Tessa returns to Merida Island. Sousuke sets up a defensive perimeter and booby traps around the girls' bath, foiling the other boys' attempts to sneak a peek.

Trivia
This episode has references to The Last Starfighter and Gundam SEED's SEED mode.