''Chapi Chapo'' is a 1974 French stop-motion animation series that was also part of the offerings of the Creator/{{Nickelodeon}} series ''Series/{{Pinwheel}}''. The eponymous protagonists were two human-shaped children that wore hats; one blue, the other red. The two children existed in a magical space filled with numerous blocks. When the children touched a block, it could be changed into an object, or its geometry would change to fit their particular need. Interestingly, the children never existed on one spatial plane; they often switched between planes to manipulate shapes.

The children weren't the only inhabitants of the space; some creatures recurred in the 60 episodes including a bunny, a small bird, and a cow.

!!''Chapi Chapo'' provides examples of:

* MindScrew: Don't try to think about the action sometimes; you'll get vertigo.
* OncePerEpisode: Chapi and Chapo do a dance at the coda of each episode.
* TheUnintelligible: Except for the opening song, the children both speak gibberish; most other creatures only make guttural sounds.
* WidgetSeries: A French type.