The Tamagotchi development model is very, very simple. This became clear to me very early on and it certainly doesn't take much thinking to work it out. Here's a few examples. If anyone disagrees with any of these, please say - I'm not claiming them as fact.

The whole calculation system behind the pet is really very simple indeed. All this stuff you read about Japanese people getting terribly attached to them I find increasingly hard to believe. Sure, it's a novel idea, but it really isn't all that complicated. There are no hidden personality facets. The whole computer revolves around these variables: That's it. Everything you do to it simply has a modifier on one of these variables. Which means that very rapidly you get really bored of the thing because it doesn't develop a personality at all.


My final grumble is with the shape. A number of the people whose messages I read on web sites were implying that because their Tamagotchi was overweight, it was actually fat. Now after we'd had ours for three days, my friend's weighed 20oz and mine weighed 45. Any difference in size? None at all. I've checked this since with a number of others. My brother's weighed 99oz and looked quite eerily similar.

So contrary to what quite a lot of people suggest, Tamagotchi do not change shape depending on their physical characteristics. They are defined as one of the pre-set shapes -baby, slightly older, one of two young adult shapes or one of the six final shapes. I was hoping to see changes in shape or activity depending on its health but they weren't forthcoming.


To conclude, Tamagotchi is grossly over-hyped. If you're a big Tamagotchi fan (which I know a lot of people reading this are, judging by some of the mail I've been getting) then I'm sorry. Don't get me wrong, I don't altogether regret buying it, if just from an interested computer programmer's perspective. I certainly never developed any sort of attachment for it and I just see it as a rather simple input-output process - as a pet it is a pretty simple and rather unrewarding one. Incidentally, I am not against the concept of virtual pets. On the contrary, I think they are a great idea and it's looking like there are a few good ones coming onto the market. But Tamagotchi ain't one of them.

Before I bought mine I looked at a lot of web sites which were full of people talking about how their Tamagotchi had developed cute little personalities and were doing quirky little idiosyncratic things. As far as I can see that's bunkem. They get ill, sleep and poop at totally predefined times (I hasten to add again, in my experience) and function purely as a very simple computer model. Given the bitmaps for the shapes a programmer could write a Tamagotchi simulator very easily indeed. Here, incidentally, are a couple of the myths I can quite happily knock down:

On a slightly more serious note, I'm not convinced by the argument that Tamagotchi is restricted by attempts to minimise the cost of the computer power behind it. While enhancing the graphics would undoubtably be power-hungry, changing the mathematical model behind Tamagotchi would not. The calculations that need to be performed to animate graphics far outweight any required for the other additions I've suggested and the ones I've suggested use very, very minimal amounts of CPU. To have a look-see at exactly what I'm suggesting, hit the right arrow. Hey, I'm really beginning to like this navigation bar thing.



These pages are copyright 1997 Chris Rae; please don't read them without the express permission of the author.