Following Jumba's creation of two cliff dragons who had a child together, Jumba created Dim Long in a beta-test to perfect the chi-power ancient creatures used for flight so he could utilize it in future experiments. Unlike the other experiments Jumba created in China, Dim Long does not live in the pocket dimension he created to house them. Instead, he lives with Jumba, Stitch, and Pleakley at Ai's family home making him a recurring character in Stitch & Ai.
- Dim Long is the first experiment Jumba created in China that was created specifically as a beta test creature for another experiment.
- He looks similar to Mushu.