An Invitation for Mr. Messy is the 12th and final episode of the first season of Mr. Men and Little Miss. It was first broadcast on 31 December, 1995.
Little Miss Scatterbrain invites Mr. Messy to her party and he got her an umbrella. Mr. Rush was going too, so he gave Mr. Messy a ride to her house. They met Little Miss Scatterbrain and Little Miss Neat at the party, Mr. Rush leaves early after eating a few biscuits in one bite. Mr. Messy ruins Little Miss Neat's food and gets her messy. Little Miss Neat leaves after Mr. Messy gave her a kiss, making her feel really awkward. Mr. Messy helps Little Miss Scatterbrain put up her curtain, but he got it all dirty. (But of course Little Miss Scatterbrain thought it was beautiful). Mr. Rush drives home and his car got Mr. Messy all muddy, but Mr. Messy likes it because he's Mr. Messy!
- When Mr. Messy kissed Little Miss Neat, it could most likely be an obscure reference to the term "The Messy Gentleman".
- When Mr. Messy says "Well I'd better be going, thank you for inviting me!", he is smiling with his mouth open. Yet his lips aren't moving even though he's talking.