In Sunshine, Bob at first appears as a simple black-and-white drawing of a stickfigure with a head, torso, and wields a mic in his left hand. Bob is seen to be happy in this song.

In Withered, Bob is seen to be irritated by the look of his face with a black smudge between his eyes and lines next to his head to show how mad Bob is.

In Run, Bob's entire body is completely black and his eyes are replaced with hyper-realistic eyes. Bob also no longer wields a mic.

If happy mode is selected, Bob in Run will lose his outline and have a crudely drawn smile on his face that constantly changes between frames.

In Trouble, one of the new songs in Bob's Onslaught, Bob is in his normal form, however a part of hell Bob (presumably the remnants of his form in Run) covers parts of his body, including half of his face and his arm. A realistic eye also remains on the part of his face covered in black and his microphone drips presumably the black substance.

In Onslaught, another one of the new songs in Bob’s Onslaught, Bob‘s body becomes completely black once again, but has a different appearance than his appearance in Run. He has white eyes and a white mouth, which are made from a mysterious goopy white substance of some sort. Bob’s arm disappears once again, but this time, it is replaced by a black colored hand that has 4 fingers, and said fingers are covered in the white goopy substance mentioned earlier. His body also appears to be ripped and torn. Up