Input lag, the delay between a player's action and the game's response, is critical in fast-paced arcade games. Several techniques are commonly employed to minimize this delay. Firstly, dedicated hardware is key. Arcade machines often use high-performance processors and graphics chips designed for minimal processing latency. Unlike general-purpose computers, they run a single game, eliminating background tasks that cause delays. Secondly, the use of CRT monitors remains a classic solution. CRTs have virtually no native input lag compared to modern LCDs, which require image processing. Their instantaneous pixel response is ideal for reaction-based gameplay. Thirdly, optimized game code and efficient frame pacing ensure commands are processed within a single frame cycle. Developers prioritize polling input devices at the very beginning of the frame calculation. Additionally, techniques like frame skipping or reducing graphical complexity in demanding scenes help maintain a consistent, high frame rate, which is directly tied to lower perceived input lag. Finally, direct connection of input devices, like joysticks and buttons, to the main board without intermediary controllers or complex drivers also shaves off precious milliseconds. These combined hardware and software approaches are fundamental to creating the responsive feel essential to the arcade experience.