Ecks vs. Sever is a first-person shooter (FPS) video game for the Game Boy Advance handheld game console. It was developed by Crawfish Interactive. Based on an early script of the film Ballistic: Ecks vs. Sever, it is the first video game developed and released before the film it is based on had begun production. It is followed by the sequel Ballistic: Ecks vs. Sever, which having been released after the film, follows it more closely than the first game. At the beginning of the game, players choose which character, Ecks or Sever, they wish to control. Both characters' plots intertwine and are given different level designs for each of their missions. Gameplay is similar to other early FPSs such as Doom in that all of the graphics for enemies and weapons are 2D sprites in a 3D setting. Ecks vs. Sever was developed by Crawfish Interactive, which obtained the license to create the game based on an early rendition of a script for Ballistic: Ecks vs. Sever, a then-upcoming action film which ...