IM4-099 often taunted the ASP-series droid ASP-704, and when it detected illegal signals coming from comm repeaters the ASP was installing, IM4-099 was swatted out of the air by the fed-up droid. IM4-099 recovered from the attack though, and later on was once more seen chirping merrily while accompanying sandtroopers.
IM4-099 was added to the 1997 release of A New Hope as an entirely computer-generated 3D model.
- The Official Star Wars 20th Anniversary Commemorative Magazine
- Star Wars Trilogy Sourcebook, Special Edition
- Star Wars: Behind the Magic
- Star Wars: The Visual Dictionary
- Star Wars Customizable Card Game — Special Edition Limited
- The Essential Guide to Droids
- The Official Star Wars Fact File3
- Inside the Worlds of Star Wars Trilogy
- Star Wars: Complete Locations
- The New Essential Guide to Droids
- The Complete Star Wars Encyclopedia, Vol. II, p. 84
- Star Wars in 100 Scenes