|Curtis the Mouse|
|Species||Human / Mouse|
|First Appearance||Rampage 2: Universal Tour (1999)|
|Last Appearance||Rampage: Puzzle Attack (2002)|
Curtis is a giant mouse, who was one of the newer generation of monsters spawned in Rampage 2: Universal Tour.
Before he became a monster/mutant, Boris, Curtis and Ruby were in a lab in Scum Labs, they were transformed into monsters during an accident at the lab, simultaneously recreating the original events of Rampage: World Tour. Curtis is already playable at the start of Rampage 2: Universal Tour and Rampage Through Time. In parallel to Rampage: World Tour, Curtis is the technical version of Ralph of Rampage 2: Universal Tour.
Curtis has white fur with peach-cream skin highlights. he has 2 huge buck-teeth and sharp teeth behind. He has huge ears and clawed feet. The palms of Curtis' hands are highlighted with skin. He has a pink tail.
- He is the second rat monster to appear in the series, following Larry and before Rhett.
- In Rampage: Total Destruction it is believed that Curtis is replaced by Rhett the Rat, who bears many similarities to Curtis. On the Nintendo Wii version of the game Boris the Rhino and Ruby the Lobster make a reappearance but Curtis doesn't, thus supporting the idea Rhett replaced him.