Beneath the Café
The Pocketfoogle is a character in the Rosen Family Chronicles, who captures Michael Rosen from Chocolate Swiss Café by putting sleeping pills in his chocolate sauce on top of Michael's freshly ordered hollywood. He claims to have tried to murder Michael, as when he discovers Michael, he shouts out "Oh no, you're not dead!" He brings Michael underneath the café (for some reason Older Rosen is also down there) where he and Michael begin fighting, with the Pocketfoogle assuming his giant form, where he turns red and his voice becomes lower. Michael's really long rolled up comic was not enough to beat him, but Older Rosen saved the day by attacking him, thus making him assume his small form, allowing Michael and Older Rosen to escape.
Brian's Stories
It is unknown what happens to the Pocketfoogle after the events of Beneath the Café, but he makes a reappearance in the episode Brian's Stories. Here, the Pocketfoogle somehow finds out where the three Rosens are staying in Rio De Janeiro, and goes there, looking for Michael. When he finds Brian Rosen there, he questions Brian, asking him where Michael is. When Brian answers "I don't know" this aggravates the Pocketfoogle, making him assume his giant, red state. Brian runs away in terror, and Older Rosen once again defeats the Pocketfoogle, causing him to fly off the balcony. It can be assumed that this kills the Pocketfoogle, as he never makes another appearance. Either this or he decides to give up looking for Michael, since Michael is so well protected. It is also unknown why the Pocketfoogle has a desire to kill Michael Rosen, he may have been hired as a sort of hitman by Lollipop Lady, but this is unknown.