A proof-of-concept design (usually not (officially) released to the general public), or a preliminary design (such as those appearing in [[artbook]]s, animation pilots, or pre-serialization one-shots).

h4. Notable prototype characters

* [[Bowser Peach]] ([i][[Super Mario Odyssey]][/i])
* [[Warupeach ]] ([i][[Mario Power Tennis]][/i])
* [[Saver (fate/prototype)|]] ([i][[Fate/Stay Night]][/i])
* [[Unused Character (kill Me Baby)|]] ([i][[Kill Me Baby]][/i])
* [[Akatani Mikumo]] ([i][[Boku no Hero Academia]][/i])

h4. See Also

* [[Design speculation]]
* [[Concept art]]
* [[Production art]]