I read all the reviews on this game. Most of them are right - it isn't a game. Well, a game in the normal sense. It is, however, a lot of fun. I think it is and isn't a good renting game. It is a good renting game if you get it and decide you hate it. But it's the kind of game you buy and play in between games. Like when you're waiting for a new mission game to play, or you're just bored or frustrated and need an easy break. Or, like a couple said, if you're musically inclined, it is a good musical tool. I just wish you could save your songs. That's a downside. But oh well. I give it a 7.
Electroplankton is definitely a unique experience. I had a lot of fun with this "game", but it plays as more of a novelty or experiment in musical design than a game. The closest thing I can compare it to would be Flow, the PC and PS3 game. I've heard about musicians using this game as part of their act, and after playing it I can see why.
ON THE GOOD SIDE: 1. Unlike anything you've ever played before. 2. Some of the "instruments" or modes allow you to actually create some good beats and songs. 3. Great presentation and sound.
ON THE BAD SIDE: 1. Unless you plan on using the game to create actual music for your band or a video, its novelty will wear off faster than most games. 2. You can't combine the different "instruments" together, which would have added much more depth and replayability to the experience. 3. A third gameplay mode in which you were given a goal would give the 99% of gamers not using Electroplankton as a musical instrument with more value for their money.
OVERALL: My main disappointment with the game was not being able to combine the different creatures or instruments to make more complex rhythms and songs. Some of the creatures are not that interesting by themselves, and you will probably end up not using them much. It also would have been fairly simple for the developers to have implemented some kind of pattern matching or simon says type of gameplay, which could be used to introduce players to the various musical possibilities the creatures possess.
I would definitely recommend a rental if you're into experimental or artistic gaming, but don't buy it unless you want to add a "hip" instrument to your band's stage show.