I've mounted the ISO file, and installed the game. Game is asking for serial key when I try to run .exe file. I'm not sure how to get past it. Tried using AlphaROMdiE.
If you happen to have Tsuyokiss Full Edition, could you upload them to katfile or rosefile? Tsuyokiss Full Edition thread I would download from the mexashare links in this thread but a majority of them are dead