| 0 | Gumball | cover | 1 | pencils: Mariel Cartwright; inks: Mariel Cartwright; colors: Mariel Cartwright | Gumball Watterson; Darwin Watterson; Tobias Wilson; Banana Joe; Penny Fitzgerald; Alan Keane; Masami Yoshida; Carrie Krueger |
| 1 | Montage of Gumball | illustration | 1 | pencils: Missy Peña; inks: Missy Peña; colors: Missy Peña | Gumball Watterson |
| 2 | The Collection | comic story | 8 | script: Fernanda Jaber; pencils: Fellipe Martins; inks: Fellipe Martins; colors: Fellipe Martins; letters: Comicraft | Gumball Watterson; Darwin Watterson; Larry Needlemeyer; Banana Joe; Alan Keane; Idaho; Tina Rex; Principal Nigel Brown; Steve Small; Margaret Robinson |
| 3 | Adventures in Babysitting | illustration | 1 | pencils: Philip Murphy; inks: Philip Murphy; colors: Philip Murphy | Gumball Watterson; Darwin Watterson; Anais Watterson; Richard Watterson |
| 4 | Stomach Destroyer | illustration | 2 | pencils: Yehudi Mercado; inks: Yehudi Mercado; colors: Yehudi Mercado; letters: Yehudi Mercado | |
| 5 | Marathon Game | illustration | 1 | pencils: Mychal Amann; inks: Mychal Amann; colors: Mychal Amann | Gumball Watterson; Colin Egghead; Felix Egghead; Bobbert; Richard Watterson |
| 6 | The Legendary Leader of Laundrodome | comic story | 4 | script: Zack Giallongo; pencils: Zack Giallongo; inks: Zack Giallongo; colors: Zack Giallongo; letters: Comicraft | Richard Watterson; Nicole Watterson |
| 7 | Trampoline | illustration | 1 | pencils: Andy Hirsch; inks: Andy Hirsch; colors: Andy Hirsch | Gumball Watterson; Darwin Watterson; Anais Watterson; Penny Fitzgerald; Tina Rex; Banana Joe; Carrie Krueger; Tobias Wilson; Carmen |
| 8 | Funland Fiasco | comic story | 2 | script: Philip Murphy; pencils: Philip Murphy; inks: Philip Murphy; colors: Philip Murphy; letters: Comicraft | Gumball Watterson; Darwin Watterson |
| 9 | Classroom Nightmare | illustration | 1 | pencils: Jenny Ayoub; inks: Jenny Ayoub; colors: Jenny Ayoub | Gumball Watterson; Darwin Watterson |
| 10 | Anais's Wand | comic story | 6 | script: Nneka Myers; pencils: Nneka Myers; inks: Nneka Myers; colors: Nneka Myers; letters: Comicraft | Gumball Watterson; Darwin Watterson; Anais Watterson; Richard Watterson; Nicole Watterson |
| 11 | Playing in the Grass | illustration | 1 | pencils: Lara Margarida; inks: Lara Margarida; colors: Lara Margarida | Gumball Watterson; Darwin Watterson |
| 12 | Stories from the Cemetery | comic story | 4 | script: Philip Murphy; pencils: Philip Murphy; inks: Philip Murphy; colors: Philip Murphy; letters: Comicraft | Gumball Watterson; Darwin Watterson; Anais Watterson; Larry Needlemeyer; Carrie Krueger; Tobias Wilson; Carmen |
| 13 | The Amazing World of Gumball Video Game | illustration | 1 | pencils: Kevin Jay Stanton; inks: Kevin Jay Stanton; colors: Kevin Jay Stanton | Gumball Watterson; Darwin Watterson; Anais Watterson |
| 14 | Storage Unit | comic story | 2 | script: Cohen Edenfield; pencils: Kate Leth; inks: Kate Leth; colors: Kate Leth; letters: Kate Leth | Tina Rex |
| 15 | The Author | illustration | 1 | pencils: Zack Giallongo; inks: Zack Giallongo; colors: Zack Giallongo | Richard Watterson |