Krazy Kremland, but it's close between that and Gloomy Gulch. I actually like Haunted Hall slightly more than the Roller Coasters (Especially the music) and they both have teh Zinger Hives. (Although I hate the Zinger Hives on emulator). Forest Interlude is probably my favourite track in the game too. However, the Haunted Forest Levels aren't that fun, KK has two roller coasters and a cool chase bit with King Zing and Rambi. Fighting King Zing with Squawks is fun too, If hard. Kreppy Krow is cool but...I prefer the King.