While players don't need to have seen the movies to play this game, their patience will be tested thanks to the pacing of the action. Men in Black: Global Invasion's narration is generally helpful and humorous, even if it can feel like a lot of instructions are being thrown at you when you start the game. Play isn't really too complex, because you battle aliens individually, and then in a group. But that basic structure, and the fact you can toggle back and forth between the two options, can be a little unclear at first. Also, the reminder messages that pop up about collecting cards, capsules, and other items makes it seem like there's a ton to remember while playing. Fortunately, that isn't necessarily the case. Characters and weapons have different advantages, which requires checking to see if they're evenly matched with various opponents. Plus, the app keeps track of the item collection and other goals for you on an achievements board.
The group battles are the biggest drawback -- only one person can shoot at a time, and characters have to re-power periodically, so some waiting is required. In addition, the skill involved in shooting can vary. In one-on-one confrontations, the bull's-eye target marker jerks above and to the sides of the alien, so timing when to pull the trigger can be challenging. But in the group battles, aside from gauging how your opponent's ratings compare to your team's, everyone just stands in the same position and periodically shoots, and there's a max of 10 battles a day you can play. Men In Black: Global Invasion supposedly also has an augmented reality version where aliens will be projected onto your immediate environment, but changing the app settings to enable the function doesn't always seem to work. You can still play without AR -- but the map looks less dynamic. As a result, Global invasion is less of a fun alien capturing game and more of an exercise in frustration that may make you look elsewhere for entertainment.