YK1 is an early Prototype of YK9 ( aka Kenny). YK1 was the first of the YK's to be built, but ended up only being a Prototype. He has not made any appearences on MLAATR, only mentioned.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.