The lights are on
What new ideas the game brings to the table and how well old ideas are presented.
How good a game looks, taking into account any flaws such as bad collision or pop-up.
Does the game’s music and sound effects get you involved or do they make you resolve to always play with the volume down?
Basically, the controller to human interface. The less you think about the hunk of plastic in your hands, the better the playability.
Flat out, just how fun the game is to play. The most important factor in rating a game.
Buyer beware: Metal Slug 7 has absolutely no two-player co-op. If you're still willing to give the game a shot, you'll find some snazzy animation and impressive set piece moments like controlling a screen-filling Slug. The main campaign is relatively average, but it's nice that you can jump into any mission once you've beaten it. Unfortunately, the bottom screen contains a useless lo-res map instead of incorporating the action somehow and the ''Training Grounds'' bonus challenges feel too similar to the main game.
Email the author Bryan Vore, or follow on Twitter, and Game Informer.