Ep. 220: Lazuli's Experiment Causes Penelope to Grow While Boss and Oxnard Shrink
Aired on October 1, 2004

220
An experiment conducted by Lazuli results in drastic size alterations for the group. Penelope becomes significantly larger than usual, while Boss is reduced to a small stature. Oxnard is affected even more severely, becoming extremely tiny. The narrative focuses on the immediate consequences of this magical mishap and the group's efforts to determine if they can reverse the changes and return to their normal sizes.
Episodes
- Ep. 216 · Hamtaro attempts to reverse a magical mirror swap involving Auntie Viv and Elder Ham
- Ep. 217 · The Ham-Hams and Mindy's Grandfather Care for a Sick Dog
- Ep. 218 · Maria styles hair while Bijou and Ham-Girls try new fashions
- Ep. 219 · Ham-Hams Dream of Robin-Ham While Sleeping at the Jewelry House
- Ep. 220 · Lazuli's Experiment Causes Penelope to Grow While Boss and Oxnard Shrink
- Ep. 221 · The Ham-Hams rally to support Maki during her school sports day event
- Ep. 222 · Lazuli encounters a flying hamster seeking Prince Bo's umbrella from a shark.
- Ep. 223 · Otome's crew honors Hero-Ham while Lazuli's animated statues cause chaos
- Ep. 224 · Djungarians Visit During Ham-Ham Halloween Celebration