GamingUnion.net: "Metal Slug XX isn't a bad game by any means. One can tell that SNK Playmore put a lot of work into the sprite-based graphics and fine-tuned the enemy placement for the most part. However, this being the seventh game in the series, more of the same old isn't enough. Metal Slug XX is still stuck in the arcade mentality where control issues and a lack of depth are considered "features". Because of this, only the hardcore fans and those with nostalgia for the Metal Slug series can truly enjoy the game."