[DisneyFanatic13]

I found a way. It's an update on RCT3. Go to rollercoastertycoon3.com, click on downloads, look under updates, click RollerCoasterTycoon3. A window will appear. Click the system that your computer is, and click on of either. Save it in a file that you'll find it, and download it. After that's done, find that file you saved, double-click it, and it will update it for you. And I finally build underground! But how do you get the lasers, and the waterfoutians? Because it's part of the firework editor thing, but there's no lasers, and/or waterfoutians. But I still need help on getting the kind of fireworks that I see in videoclips from other people of their firework show. And I really want those kind of fireworks, lasers, and waterfoutians!