, this means preserving the unique arcade hardware behavior, such as the coin-op credit system (mapped to the Select button in many emulated versions). A Legacy of Accessibility

If you're discussing the game in terms of quality or comparing it to other versions (like the original NES release vs. a re-release on a newer console), here are some points to consider:

: On the NES, players can skip almost the entire game; in the arcade, warp zones are nerfed to only bring you as far as World 6. Technical and Visual Nuances