
Game Modes:
- Tracy: The player draws lines on the touchscreen and the plankton swim along to follow it.
- Hanenbow: Plankton bounce off leaves which the player can drag around with the touch screen. This mode would become a stage in Super Smash Bros. Brawl and Super Smash Bros. Ultimate.
- Luminaria: Four plankton follow arrows around a continuous path and the player can touch the arrows to change their direction.
- Sun-Animalcule: The player places plankton eggs and they emit sound as they hatch and grow.
- Rec-Rec: Four fish swim along and the player can record sounds with the microphone for them to play back.
- Nanocarp: The player can clap and speak to the plankton to make them change shape and respond with sound.
- Lumiloop: Four ring-shaped plankton that emit a continuous sound when the player rotates them.
- Marine-Snow: Even rows of snowflake-shaped plankton that make sounds when touched and stirred up.
- Beatnes: Long lines of plankton that play old-school songs and remember the sound effects you select.
- Volvoice: Allows the player to record their voice with the microphone and then distort it.
Tropes:
- Nostalgia Level: The Beatnes plankton uses retro sounds and music from the Nintendo Entertainment System and several games on it like Super Mario Bros. and Ice Climber.
- Ridiculously Cute Critter: Never have planctonic creatures looked so adorable. Look at their smiling faces!
- Seldom-Seen Species: Plankton by itself is rather rare to see in fiction (other than in SpongeBob SquarePants), but you'd be hard-pressed to see anything but this game specifically featuring an actual sun animalcule
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- Tech Demo Game: Toshio Iwai created this game specifically because he had an interest in developing for the Nintendo DS and its unique interface.