Being built in the image and likeness of Gizoid Emerl, Gemerl has similar characteristics and behavior. At first, the robot serves his creator, Dr. Eggman, faithfully, but later, after activating a program similar to Emerl’s, he went into total destruction mode, whereupon it was stopped by Super Sonic and Eggman.
After his defeat, Gemerl was restored by Tails and acquired the positive traits of Emerl – gentleness, kindness and good-heartedness. Staying at Cream’s house, Gemerl became a good friend to her and all the heroes, healing their wounds from the loss of Emerl.