Tony Hawk's Underground 1 Full & Rip Versions: Download and extract either "THUG1_FULL.rar" or "THUG1_RIP.rar". Mount the extracted image onto a virtual drive. Run "Launch.exe" or "setup.exe", to install the game. When prompted during install, use "THUG1-2.Keygen.exe" to generate a serial key. Download and mount either "THUG1.Disk1.iso" or "THUG1.MiniDisk1.isz" using daemon tools OR download a crack from http://thps-mods.com/cracks.php