Gamasutra has an article up called 'Interview: Rodney Greenblat, The Mother Of Sony's 'Almost Mario', talking with the graphic designer for Parappa and Um Jammer Lammy:
http://www.gamasutra.com/features/20050705/hawkins_01.shtml
Some extracts:
"In the case of Chop Chop Master Onion, he was just supposed to be a karate teacher. I came up with lots of designs of what a karate teacher might be, but the onion thing they just loved, so they changed the whole thing so he was the onion master. It just worked out perfect. I don't think they had an idea of what the driving instructor might be, and I just thought it would be so funny if she were this big moose, and I was thinking of Queen Latifah in a certain way."
Regarding Um Jammer Lammy:
"And designing the main character is the hardest part; the main character is the logo basically. [I had done many others but] they went through four official Lammys that were approved but rejected later on. [The final design was] so far from my original plan that I was a little disappointed, because it's supposed to be a lamb. I had a curly haired, lamb-looking character. And then the whole Natalie Imbruglia thing came, the Australian pop star, where they wanted it to look like her."
http://www.gamasutra.com/features/20050705/hawkins_01.shtml
Some extracts:
"In the case of Chop Chop Master Onion, he was just supposed to be a karate teacher. I came up with lots of designs of what a karate teacher might be, but the onion thing they just loved, so they changed the whole thing so he was the onion master. It just worked out perfect. I don't think they had an idea of what the driving instructor might be, and I just thought it would be so funny if she were this big moose, and I was thinking of Queen Latifah in a certain way."
Regarding Um Jammer Lammy:
"And designing the main character is the hardest part; the main character is the logo basically. [I had done many others but] they went through four official Lammys that were approved but rejected later on. [The final design was] so far from my original plan that I was a little disappointed, because it's supposed to be a lamb. I had a curly haired, lamb-looking character. And then the whole Natalie Imbruglia thing came, the Australian pop star, where they wanted it to look like her."