Arcade machines, known for their classic gameplay, have evolved to incorporate player-created endless modes, though this is rare due to hardware constraints. Typically, these modes are handled through pre-programmed algorithms that generate infinite levels procedurally, ensuring variety without manual input. For instance, some modern arcade cabinets or retro-inspired games use randomization techniques to create endless challenges, where players can't directly code modes but influence parameters like difficulty or enemy spawns. However, true player-created content is limited by the machine's memory and processing power; developers often implement built-in tools for customizing endless play, such as level editors that save simple data. In essence, arcade machines rely on clever programming to simulate endless modes, balancing creativity with the rigid limits of arcade hardware for sustained engagement.