441 and the other first 624 experiments were deactivated and smuggled to Earth by Jumba during his mission to capture Experiment 626.
All of the experiment pods were released and scattered across the island of Kauai.
At some point, 441 was presumably activated, captured, and named Choppers.
The first 624 experiments, including Choppers, were round up by Leroy and taken to a stadium to be destroyed. However, Lilo, Stitch, Jumba, Pleakley, Reuben and Gantu arrived before the experiments could be destroyed.
Choppers participated in the following battle between the experiments and the Leroy clones.
The Leroys soon gained the upper hand in the battle, but were defeated when Lilo, Stitch, Reuben and several other experiments performed the song Aloha `Oe, which caused the Leroy army to shut down due to the original Leroy's failsafe. Choppers joins them for the song by playing the bongos.
Choppers is a large green ankylosaurus/hippopotamus-like experiment with a big nose and mouth, two stubby antennae and a large spiked beaver-like tail.
Choppers can chop things in two by using his large spiked tail.
Choppers has shown to be skilled in playing the bongos.
- Choppers' pod color is green.