i dont know if youve covered this yet but when i try going to the website to download the future leo ghost program, it says the site cant be reached.
Thank you for bringing this to my attention! I have no idea what happened to the website, but I guess I'll list how you install him here.
How to Install (instructions by Zarla, thank you)
Basically, you can't run Leonardo (or any Ghost) by himself - you need a baseware program first. SSP, the program most commonly used for running Ghosts, is compatible with Windows XP, 7, 8, 10, Vista... probably anything more current than XP. If you're using a Mac or are running Linux though, there are still options for you, but I can't personally tell you how to get them to work. I have heard from people who did get Ghosts running on their Mac using one of these methods though, so it IS possible. But Google Translate will probably be your friend here.
Macs - Ukagaka on Macs, NiseRingo, PlayonMac+SSP (10.6 or above), WineBottler
Android - Ukagaka for Android(
If you are using Windows though, just follow these directions and you'll be set in no time! If you already have SSP installed, you can just skip to the end.
Installation instructions with screenshots
The first thing you'll want to do is download and install SSP. While the site is in Japanese, just look for the "complete install package" download on the left. Download it somewhere and install it. When that's done, run SSP.exe, the program with the little bell icon. A catgirl named Emily should pop up and start talking to you in Japanese, and end up throwing up a big menu. For now, ignore all of that, and just close the menu when it appears. You can also hold down a key to speed through her text. She's the default Ghost that comes with SSP, if you're curious.
Right-click the catgirl. It should bring up a long menu. If it's in English, then you have nothing to worry about. If it's not, go to the fourth option from the bottom, set it to English, then close the catgirl and reopen her. The right click menu should switch to English. The catgirl ghost will still be in Japanese though.
Download FutureLeonardo.nar and turtle_ballooney.zip. Drag and drop the turtle_ba;;ppney.zip onto the catgirl's face. It should look like she's installing something. She might tell you the balloon's name when she's done. If you right-click her and go to the Balloon tab, you should hopefully see the turtle balloon listed.
FutureLeonardo.nar is the actual Ghost. Drag and drop the FutureLeonardo.nar file onto the catgirl. She should again look like she's installing something. She'll probably say Leo's name when she's done. Right-click Emily and go to the "Change Ghost" tab. You should now see Leonardo listed! Switch over to him and you should be ready to go. If he's not using his balloon, you can use the Balloon tab to switch him to it.
If you want him to stay on top of your windows, right click him, then go to Options - Preferences, then the Ghost(2) tab in the big menu that pops up. Check "Always Show Foreground" and that should do it.
If you already have SSP coming into this, then all you have to do is drag and drop his respective balloon zip and nar onto your current ghost, and he'll install.