Mental Omega: Almost Perfect Yuri's Revenge is a free unofficial expansion pack for Command & Conquer Red Alert 2 Yuri's Revenge (from Westwood Studios), which retells and continues the storyline of the original game. Enhanced with Ares DLL, Mental Omega 3.0 strives to bring new features to Red Alert 2 Yuri’s Revenge.
Maybe in the future we'll get a different unique cover, but here's a funky mockup that tomsons26 came up with, based on a pre-release Red Alert 2 cover featuring Volkov.
Oh and remember, if you see Mental Omega for sale then it's a scam. Mental Omega is downloadable for free.