At times, Pikmin will make a reference to another piece of media, normally within the same company, Nintendo. These nods to other franchises can range from subtle to obvious, and their discovery is a small entertainment reward for savvy and attentive fans. The Mario series is the most commonly referenced one. For the sake of completion, references that are ambiguous but mostly agreed upon by the community will be included in this article as well.
Some treasures contain cameos of other Nintendo series. These include:
During the introduction cutscene, when the diagram shows the S.S. Drake being gravity assisted by a celestial body (likely Koppai's moon), a faint chiptune-like sound effect plays. This sound is actually the walking sound for Mario on the NES port of Mario Bros. In addition, when the cutscene shows a diagram of the Drake exploding and the three leaders scattering, a jingle similar in retro nature can also be heard. This one is actually the sound byte that plays when a player lets the ducks fly away in Duck Hunt.
Pikmin Short Movies
Treasure in a Bottle