Continuity mistake: When Crash McDash starts banging on the prison doors, wanting to come back in, the doors have rivets on them. But in a full length view of the prison in the next shot, the rivets have gone.
Continuity mistake: When Crash McDash sees the laundry van, there are three buttons on his prison suit. When we see him coming out of the wash tank, the buttons have gone, and when McDash approaches Willoughby's helicopter, they are back again.
Continuity mistake: When Crash McDash sees the box of candy under Willoughby's hat, the style of the ribbon changes in the close-up.