The game is not without flaws however, despite how well it plays as a whole. Though there are five classes of weaponry to choose from the pistols and shotguns really don't have a high enough rate of fire or a large enough clip size to be effective in the later levels, and the explosive and power/fire weapons are both prohibitively expensive at lower levels and are almost wholly outclassed by the high end machine guns in terms of damage output and versatility. In essence you can literally sell off any other gun type you have once you get a machine gun and only upgrade to better models as you can and never have trouble. It's not that this fact makes the game any less fun, but rather that it is just a bit of a disappointment to see such little reason to use any other class of weapon.

Alien Shooter: Vengeance boasts a fairly respectable graphics engine despite being entirely based upon 2D graphics and sprites. As you aim and move to fire at foes all around you your character's animation switches from sidestepping, backpedaling, and running accordingly, all with proper arm and gun movements. Aliens have fairly convincing animations overall, but the most eye-catching and enjoyable ones are those when they die and fall apart under a hail of gunfire. A clean, organized room can turn literally into a sea of red interspersed with chunks of flesh and spent shell casings in moments, as aliens fly apart in a bloody mess and further aliens die in similarly creative manners in the same spot. The environments themselves often have many destructible aspects ranging from the harmless, such as computer monitors sparking and chairs falling apart, to the potentially life threatening, such as accidentally destroying a light casing the area into darkness or sending a stray shot into a nearby explosive barrel and sending the whole place up. The way light plays onto objects from your flashlight is particularly well-done, making each character in the game cast a shadow and making you feel anything but safe when it's your only source of light.

Sound, however, is one aspect of Alien Shooter: Vengeance that you can pretty much take or leave. The game has a respectable soundtrack that toggles between ambient music when you're not in combat and anything from techno to metal when you are knee-deep in it. There are thankfully no songs that are grating enough to detract from the overall experience, but at the same time very few of them really get you pumped up and draw you into the action. The sound effects of the weapons are all a little lower quality than the norm, with most of them lacking the punch that really defines the weapon they are supposed to represent, but to make up for it the sounds the aliens make sound sufficiently otherworldly and just a bit creepy. As a whole while the graphics quality in Alien Shooter: Vengeance somewhat belies its budget title status, the sound quality definitely falls squarely into that description

How it all stacks up is that, while Alien Shooter: Vengeance does have a few flaws in it's mix and is a rather old-school title in both it's gameplay and it's graphics, at the same time it is actually quite entertaining in that it can be increasingly hard to put down the farther you get into the game. It will take your average gamer about 6 hours or so on their first play-through to complete the game and even still there is enough left in the gameplay to warrant a second play through to try building your character differently or just for the entertainment factor alone. All things being equal, Alien Shooter: Vengeance is a pretty enjoyable action RPG that is undoubtedly worth more than it's price point would lead you to believe, and that's something that really can't be said about far too many other titles, budget-priced or otherwise.