The 3-2-1 Penguins! Theme Song is the song used as the opening introduction for the 3-2-1 Penguins! series.
Let's sing a little song
With eight little words
'Bout a rocket ship and flightless birds
- This is the only time Mike Nawrocki voices Kevin.
- A few visual and audio changes were made over the series' run:
- Starting with Runaway Pride at Lightstation Kilowatt, Grandmum's footsteps are louder in the beginning, and a high-pitched noise is added when she turns on the radio.
- When Warner Home Video started reprinting the episodes, name icons were added when the characters shout their names.
- When the series was revived in 2007, a montage of clips was added after Kevin shouts his name. Grandmum's footsteps were removed, the high-pitched noise was replaced with a low humming, and motor sound effects were added when the Rockhopper flies around.
- The cat illustration on one of Fidgel's beakers is the same one seen on Larry's oven mitt in VeggieTown Values: On the Job.