Geigenstein, A.K.A. Experiment 201, is an illegal genetic experiment created by Jumba Jookiba. He is designed to eat books so no knowledge is gained.
Experiment 201 was the 201st genetic experiment created by Jumba with Hämsterviel's funding. He was designed to eat books so no knowledge is gained.
This experiment was one of the pods in Mrs. Hasagawa's dish that was not activated.
Geigenstein is a tall Nosy (199)-like experiment with long, floppy ears and a smaller nose.
- Geigenstein's pod color is white.