Classic NES Series: Castlevania Cheats
Passing the bats on level 6
To get past the bats, walk past the first two, freeze the third with the clock in the nearby candle, jump over the fourth, and run quickly past the last candle. REMEMBER: This only works if you do not stop to whip any candles other than the one with the clock in it. Simple run as fast as possible.
Finish the game under the normal difficulty setting.