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FULL HD 60 FPS!
This game had a very bad port when it just came on PC platforms.
The game was not playable on most of computers, so it was taken down from Steam.
After a half year, performance patch was released. It fixed the game and made it playable again.
This game has one of the most wonderful graphics (today is 2018, still kicking it)
Full walkthrough you can find on this link! :)