The two main characters appear exclusively in the first episode, and most of the later episodes. The cartoon is minimalistic in style: it is presented on a plain magenta background, and the characters are white with dark grey outlines. Most of the episodes – usually the more recent cartoons – begin with Weebl singing a short song, usually about pie, his main love in life (an example of this "This is a song/a song about pie/hope I get some before I die..."). Bob moves on and off by rolling and remains typically to the right of the animation pane.