|Season(s):||Beetleborgs Metallix 2|
|First Appearance:||The Old Gray Flabber|
|Number of Episode|
Les had drawn a portrait of Flabber which caused him to get old (in a situation akin to a revered "Picture of Dorian Gray"). Les then drew Triplesaurus Rex, a blue 3-headed Tyrannosaurus monster with two short arms and two long tail-shaped tentacles, to distract the Beetleborgs from Flabber's rapid aging. After Triplesaurus Rex was seemingly destroyed by the Beetleborgs, his 3 heads came back to attack them. They ended up getting taken out of the picture also. Triplesaurus Rex's picture was seen among the many of Les' drawings that were combined with toxic chemicals and Nukus' powers to create Repgillian.