Mr. Pen Pen
Genres: Comedy
Type: Special, Episodes: 1
Aired: Mar 31, 1986
Source: Unknown
Rating: PG - Children
Synopsis:
Pen-Pen, the hat-and-tie-wearing prince of Penguin Land, turns up unexpectedly on little Mika's doorstep. and invites himself and his zany friends to stay.

Based on the manga by Muroyama Mayumi, serialised in Shougaku Ninensei.

(Source: AniDB)