Future Numbuh 2, Future Numbuh 4 and others in “Unfinished Business”

After that, 74.239 ordered Father to release us or he'd destroy the cake.

He told us to meet him the very next morning in the old, abandoned amusement park! [thinks] I forgot what it was called...

The Rainbow Monkey Let's Learn About the Lavatory Fun Park. Can you believe they tried to make a theme park based on potty-training? The minute I took over the Rainbow Monkey Corporation, I tore the place down. Just to stop the smell.

74.239 told us he would explain his little test once we got there, for the place was deserted.