It's probably been almost 15 years since I played through Portal on The Orange Box on Xbox 360, so it's amazing to see just how well this game holds up in all aspects. Even the graphics still look great thanks to a sharp visual design. Puzzles are clever, the dialogue & humor are just as amazing as ever, and the core concept of portals has yet to be properly replicated (aside from Portal 2). I was surprised at just how short this game was. I felt like I was taking my time and came in well under 2.5 hours. That doesn't detract all that much from the game, and Portal 2 certainly rectifies this.