This page explains how to solve the quest "Rank C Challenge!" in Yo-kai Watch.

Start the Quest

Go to Timers & More in Blossom Heights and talk to Mr. Goodsight to start the quest.

Upgrade the Yo-kai Watch!

To complete the quest, you need to defeat specific Yo-kai, not random ones. To find the Signibble, go to the Academy Shortcut (an alleyway) in Downtown Springdale. To find the Suspicioni, go into the alleyway behind Frostia's Place in Downtown Springdale. To find the Tantroni, go to the Delivery Bay (an alleyway) in Downtown Springdale. Talk to and defeat each one.

We passed the test!

Go back and talk to Mr. Goodsight at Timers & More to complete the quest.