"OPMode" refers to a suite of unauthorized client-side modifications (hacks) for the browser-based soccer game, Haxball. While Haxball utilizes a headless host system for many competitive rooms, OPMode exploits the game’s reliance on extrapolation and P2P communication to grant users unfair advantages, such as enhanced physics, "anti-kick" features, and movement synchronization overrides. This paper outlines the functional working of these exploits and their effect on the community. 2. Technical Architecture and Vulnerabilities
OPMode is typically implemented via: