XLR8 resembles a semi-armored velociraptor, the base creature for the form's design. XLR8 has wheel-shaped feet and wears a helmet with a visor, which is part of his alien biology, leaving the features of his head unknown.
In John Smith 10, he has his UAF appearance until Omniverse, where he gains his Omniverse design.
The Dimension 30 version is brown and white instead of blue and white.
For the Dimension 23 appearance, see below at Quick Man.
XLR8 appears as one of John's original 10 aliens. While Fasttrack is ususally used for close combat, XLR8 is usually used for long distance travel or chases.
Quick Man is the version of XLR8 that is used in Dimension 23 by Megaman. His eyes are light blue. He has the dark blue Mega-Tech armor on his body, and his visor helmet is round like Megaman’s. His left arm has the Mega Buster on it, his left hand coming out of the blaster tip, making the arm longer than the right one. The Omnitrix symbol is on his chest. He has the same powers as XLR8, the Mega Buster having no effect on his powers except enhanced strength in that arm.
Quick Man having his left hand growing through the Mega Buster is based off Kineceleranss having faster recovery rates than other species. His hand grew back at a faster rate, growing at the end of the limb, which was the Mega Buster. He is one of the few of Megaman's aliens that doesn't have shapeshifting powers that has a left hand.