Idiot-proof way to make a hard level: Step 1: Download someone else's level because you can't make good levels yourself. Step 2: Add lots of spike traps! Step 3: Play the level! Did you beat it first try? If so, repeat Step 2. Step 4: Aww wittle baby, is it too hard for you? Whatever. Put a mushroom somewhere in the level. Repeat Step 3.