Scaler (also known as Scaler: The Shapeshifting Chameleon) is a video game released in 2004 by Take-Two Interactive and Global Star Software for the GameCube, Xbox, and PlayStation 2 video game consoles.
Unbeknownst to Scaler, Looger controls a network of unstable portals that are the only connections between the different dimensions in the multiverse. Any being in control of these portals would have the ability to move freely between the different worlds, and even capture them. Looger has managed to accomplish this through the use of a device created by a scientist named Leon, who was consequently exiled through a portal to a desolate world. With the portal being his only escape route, Bobby "Scaler" Jenkins escapes from Looger through the portal and must now travel the strange world he arrives upon in his new form in order to find and defeat Looger or all of the universes will go into darkness.
The main attraction of Scaler is the ability to transform into five different types of mutant lizards, each one giving some sort of advantage depending on the environment. As the character journeys to different areas of the world, he will occasionally be given a challenge to defeat a number of special foes, thus giving the ability to transform into them and use their unique abilities to his advantage. Each area he journeys to allows him to transform into only one of the forms.