The first half of the game is straight up gold. The weapons are fun and unique, the enemies are cannon fodder on lower difficulties but feel cunning and dangerous on higher difficulties, and the level design is genious. The second half is spottier in terms of quality and contains some really repetitive level design to the point of being boring. The game overall is a classic, and remastering it was a good idea, but the anniversary graphics just make the experience worse by muddling the aesthetic and harming the readability and visual clarity of the original graphics.