From what I gather it's supposed to be some sort of Poketstation game.... however you can play the pocket staton games actually in the game it's self. You get som credits to begin with... just walk up to the first guy behind a counter in the first island and purchase what you can afford. Then go to the other island (not the theme park or the one with a Pocketstation sticking out of it and find a guy behind another counter. A menu will open..... click the play button.
I have no idea HOW you get more credits to buy more games. I've literally only played it for 10 minutes.
It is pretty cool though.... and now we have the full series of Jumoing Flash
Here's what wiki says: (However, Pocketstaion Peripheral is NOT essential)
Pocket MuuMuu (ポケットムームー?) is a 3D action game for the Sony PlayStation. It was developed by Sugar and Rockets and published by Sony Computer Entertainment and released exclusively in Japan in 1999. It is a spin-off game in the Jumping Flash! series. The game requires use of the Sony PocketStation peripheral
Here's what IGN says:
by IGN Staff JANUARY 11, 1999 SUBMIT TWEET SHARE +1 SHARE Misunderstood yet ever-so-cute, the odd space-being named MuuMuu made his debut in one of PlayStation's very first games, the now-classic Jumping Flash. Now he's got his own game, and although it shares some visual similarities to its forerunners, it's shaping up to be more of a strategy title than a platforming romp.
It appears that platforming elements will still come into play at certain points, but the real focus here will be the building of amusement parks and their requisite attractions. Fully utilizing Sony's new PocketStation, the game will have players taking part in a number of mini-games to raise the "points" necessary to expand their parks and, in return, attract more visitors. If it sounds strange here, you can be assured it will be even stranger in execution ¿ but nonetheless entertaining if the past games are any indication.
Sony Computer Entertainment America currently has no plans to bring Pocket MuuMuu stateside, but, as with almost every aspect of this industry, that is subject to change. If (or when) it does, we'll be certain to let you know.