'Turn to D'ohkness!'
'No, Kingdom Heart is light! Mmmmm.....light...'
King Mickey: "Well, Master Xenanort, I made it, despite your directions."
Xenanort: "Ah, your majesty King Mickey, Welcome! I hope you're ready for an unforgettable lab tour!"
King Mickey: "Yes..."
Later...
Xenanort: "Oh ye gods! My heart experiments are ruined! But what if... I split my soul among several bodies as a distraction? Hoho, delightfully devilish, Xenanort!"
Later:
King Mickey: "Good Lord what is in happening in there?!"
Xenanort: "The Gateway to Light."
King Mickey: "T-the Gateway to Light? At this time of day, at this time of year, located entirely within your laboratory?"
Xenanort: "Yes!"
King Mickey: "... Can I see it?"
Xemnas: "...No."
Lenzo: "HELP! EVERYONE IN THE LAB IS LOSING THEIR HEARTS!"
Ansem: "Don't worry, Lenzo it's just the Gateway to Light."
King Mickey: "Well, Xenanort, you're a strange fellow but I do admit, you have some good plans."
Lenzo: "HELP! HEEEELP!!!"
(I don't know how accurate this is to actual KH lore.)