The game is also bursting with depth in every aspect of its design as a video game. From the core shooting mechanic to challenging dungeons and puzzles, incremental but satisfying weapon progression, heavily varied environment design, a well-balanced rising difficulty, and even some more miniscule details bring this game to life greater than many at the time. And it didn't have to be a 40-60 hours long experience to feel like players got their money's worth. Very few games felt like such a compl...