It's Mickey's birthday and his pals help celebrate.
- A party banner
- A birthday party hat (Mystery Mouseketool)
- Minnie narrates the title of this episode.
- It was revealed that the gang celebrates Mickey's 86th birthday.
- Professor Von Drake and Pete were the only two friends not invited to Mickey's Mousekeday.
- Clarabelle, Chip and Dale appear, but they don't do the Hot Dog Dance in this episode. It is not explained why.