Continuity mistake: While Sam puts Slappy on the junk cart the sun changes between shots.
Continuity mistake: Towards the end after all the monsters are gone, in the background the sun is barely shining, but after 5 or 6 minutes when Sarah and the others are outside the building it's completely daytime.
Continuity mistake: As Sam practises his school project in his room, Slappy's head changes position depending on the cut.
Continuity mistake: Slappy makes the Street Fighters action figures fight. The colors on the Rubik's cube change.
