Question: To play Sonic 3 & Knuckles on Sega Genesis.
Option 0: Insert the Sonic & Knuckles cart into the Genesis and open the top. Power on the console, then insert Sonic 3 into the top slot.
Option 1: Insert the Sonic & Knuckles cart into the Genesis and open the top. Insert Sonic 3 into the top slot, then power on the console.
Answer: 1