how do you defeat the mad doctor in epic mickey

Answer 1

To defeat the Doctor, you must either destroy the Beetleworx generators, or reassemble the tracks in the attic. In order to increase the amount of Thinner you have, you must destroy the generators that are creating various Beetleworx that are trying to attack you. To do this, you must use Thinner on the red lights above the doors that generate Beetleworx. If you wish to raise the amount of Paint you have, you must rescue the gremlin in the Library and the one in the Ballroom, they'll destroy two generators for you, then put a TV on the power trigger and some anvils on some buttons to lower the tracks found in the attic can be reassembled, and the cart on the track can crash into the machine behind the Mad Doctor.