Arcade machines, especially classic ones, were originally designed for short, high-score-focused gameplay sessions rather than long-term progression. Unlike modern consoles or PCs, most traditional arcade cabinets didn’t feature save states due to hardware limitations. However, some methods were used to track progress:

1. High Score Tables: Early arcade games saved top scores locally using volatile memory (RAM), which reset when powered off. Later, some games used battery-backed RAM to preserve scores.

2. Password Systems: Certain arcade games, like "Gauntlet" or "Double Dragon," employed password systems to let players resume progress in longer campaigns.

3. Memory Cards (Neo Geo): The Neo Geo AES and MVS systems allowed players to save progress via memory cards, a rare feature in arcades.

4. Modern Emulation: Today, arcade emulators (e.g., MAME) simulate save states, letting players save progress artificially.

While most arcade games prioritized quick sessions, these workarounds helped bridge the gap for progression-heavy titles.