Electroplankton is an interactive music video game developed by the Japanese interactive media artist Toshio Iwai and published by Nintendo for the Nintendo DS portable gaming system. This unique software allows one to interact with animated "plankton" and create music through one of ten different "plankton themed" interfaces. This title is commonly not regarded as a video game in the fullest sense, but rather a "toy" because there is no objective, timer, or top score. It is also regarded as a demonstration by Nintendo of the capabilities of the DS's ability to take input by microphone (which in most games is limited to simply recognizing whether the player is blowing into it) as well as the touch screen and symbolic linking of the responses/senses "touch, speak, see, hear." Everything that the game has to offer is available from the beginning. The first-run edition of Electroplankton in Japan came bundled with a set of blue colored ear bud headphones.