Simon tells us his story through his narration and his own drawings, this video includes clips from his animated films and examples of his childhood artwork too.
The voice was recorded first, then edited down in Adobe Premiere. For the 'speed drawings' we screen-recorded Simon drawing into Adobe Flash. These recordings were then re-timed and edited in After effects. Camera moves and transitions were then used to build up the story.
The Simon's Cat music and the final sound mix are by Russell Pay (aka Shrooty.)