Marathon

Marathon is the “original” Galaga track. Settings are Rank D/Hardest difficulty, 3 Lives + 20,000/70,000/70,000 Extra Lives.
Can be submitted with harsher life/extra settings, but not
an easier one such as 20,000/60,000/60,000, unless the game is scored after 18 lives (e.g. if your 18th ship is captured in attempt to double, scoring ends) and no Extra Lives are used that would not have been gained on the correct settings (e.g. you have one ship left at 59,000. You gain an extra at 60,000 but die at 65,000. Scoring ends, as your remaining ship wouldn’t have been rewarded until 70,000 on correct settings).