Megaman games are no walk in the park. This especially goes to Megaman 3. Here's how you beat the game in a very summarized order.

Step 1: Defeat all nine robot masters

Step 2: Fight all of the robot masters form Megaman 2(They're not easy.)

Step 3: Fight Break Man Doing the same stuff he always does.

Step 4: Go through Dr. K's fortress.

Step 5: DO SOME WILLY LEVELS!!!!\

Step 6: YOU BEAT THE GAME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:):):):):):):):):):):):):):):):):):):):):):):):):):)