Good old Serious Sam, now in HD. Graphics are obviously better now, same great gameplay. But something went wrong with the "gravity flipping" effect, the ones happening in Karnak and Sacred Yards. All new engine and that feature was removed, what's wrong? Other than that, still a great game. Those who played the original will like this one. I loved the original Serious Sam for its over-the-top action and unique levels. The HD remake looks fantastic, but I noticed the gravity flipping sections are missing. Was this a technical limitation or a design choice? I hope they bring it back in future updates!