Jeff just managed to click the undo button as his right arm was turning into cloth and was promptly greeted with an error message, "Cannot turn inanimate matter back at this time. Initializing backup protocol." His heart raced, as he wondered what that meant as suddenly the pants which were his legs started to become more rigid. He fell down to his pants, making contact with when which immediately stuck to him again.
Gradually it lost it's textile finish and filled up into a more box-like form. Meanwhile his arm reformed as a metallic tube with a mechanical joint on its end. Individual fingers formed with rubber tips on their ends.
Pistons started to form on the sides of his legs. The boots also became metal, but retained their rubber soles. The foot part of those became longer as they joined with the legs. At the same time his ears grew as did his nose.
Eventually the changes stopped and the Chronivac chimed. He tried to stand up. His legs were completely mechanical, they were bent in a kangaroo-like fashion and emitted a slight whir with every move. The sides had round pistons as well as vents. On top there were yellow and black diagonal stripes. Looking further up he saw his crotch area, it was all metallic up to his his belt-line, but the crotch had a closed catch. He suddenly noticed something on his rear end, looking back he noticed a metallic tail. It consisted of a series of tubes ending in a metallic tassel.
He tried walking to the bathroom, but found it incredibly awkward, instead he started to jump or more specifically bounce to it with little effort. His tail following him gracefully. Arriving there he looked at himself in the mirror. The changes were quite remarkably. His body was now covered in beige fur, except for the metal parts of course. His ears had grown to an enormous size and his nose and mouth increased in length making him look like a mouse.
In a mixture of shock and surprise he realized, "I'm a cyborg.... kangaroo-rat?".