


They have a low HP to AP cost, long recharge and move slowly. Their main weakness however is that good early-game units counter them- they die in one hit to the Claw Unit with no chance to counterattack, while Utan and Donkey Slug can attack them outside their counter range.

It also helps that they have one of the fastest productions speeds of all units and are pathetically cheap to produce, which allows one to keep pumping out scientist zombies until their combined Counter-Attack is able to destroy boss-type units like Donald Morden in one fell swoop. The scientist zombies have lengthy invincibility frames on knockback, allowing them to survive where other infantry normally wouldn't.See Game-Breaker below or here to understand why. Parachute Trucks in Wifi battles, until the 1.30 update where they got a much-needed Nerf.“‘METAL SLUG’, the worldwide famous 2D action-shooting game series, returns in a Tower Defense / Strategy game on iOS and Android devices! “METAL SLUG DEFENSE” not only reproduces perfectly the intricate dot-pixel graphics and simple game controls that made the success of the series, but also adds a touch of strategy. Metal Slug Defense is a free to play game, but it is supported via in-app purchases. WiFi battles against other layers are supported giving the game multiplayer attributes. Over 100 background stages are featured from the Metal Slug series. Weapons can be upgraded, as can units as more experience is gained. It features over 60 playable characters and units. Both Android and iOS gamers can get the game right now. The game is a tower defense/strategy title that has the same dot pixel graphics that the original NeoGeo game featured. A new title in the Metal Slug franchise has launched called Metal Slug Defense.
