In Dr. Mario, players rotate "pill" pieces as they fall, attempting to clear their screen without spilling over the top. Each stage has a specific number of viruses that must be eliminated instead of simply playing until you die.

How long is Dr. Mario?
When focusing on the main objectives, Dr. Mario is about 2½ Hours in length. If you're a gamer that strives to see all aspects of the game, you are likely to spend around 9 Hours to obtain 100% completion.