Note: this tutorial is for Snow Leopard. YES IT DOES WORK FOR LION First download the app from pcsx2mac.net: http://pcsx2mac.net/files/pcsx2SL.pkg Then download NVidia CG Framework: http://developer.nvidia.com/object/cg_download.html You will have to make an account if you don't have one already, it's free regardless. Install both packages and then start PCSX2 NOTE: You will need to download Bios for the emulator which you find easily with the help of Google. So first go to Config/Configure this is what it should look like: To get your bios just press "Select Bios Dir(as in Directory)" and then choose the folder with the bios that you downloaded. GRAPHICS: This is what the graphics should look likeFor certain games pay attention to the bottom, you can go through a check list that will fix games like Kingdom Hearts and what not so it's not so choppy) Also the widescreen and choice in Resolution doesn't matter, I just like it that way SOUND: FIRST CONTROLLER: Controller settings are really up to you, if you can get a gamepad that works with your mac then I'd use that. But these are my settings(they're close to Assassins Creed 2 if you've ever played that on the Mac) EDIT: Notice for "Select" and "Triangle" I have both set to "V", that was a mistake, change Select to something like M(since Start is N). Leave everything else the same(just don't forget to set your Bios Directory) After all that you're ready to play a game. Press OK to save your settings. Click File/Run ISO Image Then find wherever you downloaded your ISO. For some reason the mac version always starts you out at /Applications/pcsx2.app/Contents/Resources/pcsx2 so you'll have to click that and then "/" to take you back and then choose "Users/" then you're name/ and from there it's wherever you put it for me I made a folder named "PS2 Isos" From there select your game and press OK, enjoy playing For games that are different language like Kingdom Hearts 2 Final Mix+ which is Japanese, you'll have to set your Bios to Japanese. FOR BIOS AND GAMES USE GOOGLE, DUH GUYS. Hope I helped at all.