The Chrysalis' head can extend a short distance from underneath its carapace when biting prey, in addition to the extension of the inner mouth. It sometimes moves and-or attacks by rolling itself along the ground in a ball.
More Chrysalis are seen defending the Queen during the final battle. These have a reddish or blue coloring.
A variation of the Chrysalis appears in the second level of the Konami "Aliens" arcade game, but it looks considerably different, and has a different attack pattern.