W00T! Done with the help of http://ultimatewalkthrough.blogspot.com/2010/11/doodle-devil-walkthrough-for-all.html.
Most of em are not right.. but meh :)
Killed: 8 people. LOL 5/5 loved it! although im like.. what? 30 people? but as the game progressed it became easier to scare em
and btw, try 'haunting' a person... following him/her.. easiest thing.