You can use whatever type of chord you want to use- though using bar chords are a little more intermediate, I think it sounds better. Start by playing A and D while he's whistling A (x02220@1) D (xx0232@1) When I was just a little boy AI (x02220@1)threw away all of my action toys D (xx0232@1) A (x02220@1)DWhile (xx0232@1)I became obsessed with Operation A (x02220@1) D (xx0232@1) With hearts and minds and certain glands Ayou (x02220@1)gotta learn to keep a steady hand D (xx0232@1) A (x02220@1) Dand (xx0232@1)thus began my morbid fascination E (022100@1) F#m (244222@1) F#m (244222@1)E (022100@1) Tore the spines from out of all of these self-help books F#m (244222@1) DMade (xx0232@1)myself a gun that not only shoots but looks so real E (022100@1) A (x02220@1) DYeah, (xx0232@1)it shoots through steel with rays of dark matter A (x02220@1) D (xx0232@1) A (x02220@1) D (xx0232@1) Rays of dark matter It's really just the same through the rest of the song. It's an amazing song and easy to learn. I hope you have fun. d:)