- Mio was first introduced in the Master of the Minions event, before being added as a playable character later during that same event.
- Mio appears in the artwork for and is quoted in the description of .
- 's name is a reference to its creator, Mio.
- Mio's and Mousse's voice packs are the only voice packs in the game that don't require DLC to unlock.
- Mio is the only character whose icon on the character select screen is hidden if she is not unlocked, rather than greyed out.