It's rare for a videogame to be so completely compelling without actually coming to a point, but such is the case with Nintendo's Electroplankton for NDS, a hand-scribed and voice-boxed music generator that has you controlling various micro-organisms of the planctonic kind which react by making melodies, beats, harmonies and chords simply, or ultimately, for the heck of it.

Graphics for both the controllable plankton and the synchronal, digital equivalent of a lava lamp they ultimate produce are sparse but artistic while the audio is genuinely listenable - on stereo headphones, at least- in a trance/electronica/ripple-in-a-pond schmaltz sort of way.

Real musicians won't appreciate the level of sophistication - which it ultimately lacks, because it's for the masses feigning maestronic, not actual maestros - but for little quickie tune toying when you can spare 10 minutes, Electroplankton is all that.