To say I am addicted to RCT2 wouldn't be far wrong. To say I am disappointed with the WW add-on is putting it mildly. New vehicles on the rides do not make a NEW ride. For instance the water rides; submarine ride now comes with killer whales or hippos, crocodile ride is just a water coaster with croc shaped boats and mandarin ducks -> swans in fancy dress. And another bit of bad news in the scenario editor you are still limited to how many rides and objects you are allowed to have (a real bug-bear I want them ALL!) One of the reasons that it gets so many stars are the objects, some are stunning. Banners that flutter in the breeze, Buddha's, dragons, bamboo walls, Mayan statues, bunches of balloons that bob up and down, Russian minarets, African animals, diamond mine conveyor belt, stunning ocean theme wall pack, Aboriginal artwork, samurai warriors and a few more ride entrances. Unfortunately no new entertainers to go with them, no more coloured waters either. (You can get a pink water download at the official website.)The scenarios are very well laid out with good uses of the new scenery and still challenging money-wise but I think I'll build my own and just have to be picky about which objects I use. Still moaning about that! I really want to give it more stars but it just doesn't tick all the boxes for me and if there is another add-on it will probably be just the same, just had one and now I'm wishing for another. No satisfying some people! At least with Zoo Tycoon the add-ons were better, but I'll leave that to another review. I'm crossing fingers and toes for RCT3, hopefully the makers will take note of what people are saying in the forums out there, but it will probably be a long wait. Buy Wacky Worlds just for the new scenery and not for the "new" rides and you'll be happy, I'm still as obsessed by it as when RCT1 came out.