Hm. Wormmon's favorite game to play requires a monitor, so that won't work for cheering up this girl. But there's something else that makes him happy. "I liked the card game that Ken-chan played!"

Duel Monsters....

Oh!

Ken removes his pack from his back and begins rummaging through it. If memory serves, he'd hurried out here to assist, and had unintentionally included...

There. He opens the deck case and removes a card to show the girl. "See. Some monsters aren't scary. They fight as your friends."

The girl crowds over to look. Wormmon, catching on to what Ken-chan's doing, nods to Kaiba. They've got this! Go get the cards.