Dr Monkey for a head's place, or where the headlesss dude is...any places for hidden marbles? bcuz its impossible to find them all...plz help asap

Whip the banana pictures, beat the painting thing,(make it look away from the door then 'creep' inside)whip the chairs,(if you whip the tables nothing will happen)at the end of the level,(left from where the vacumm is/was)whip the wall where the marbles are showing and at the end of the hall where the painting is, where the railing ends, jump off to find a ton of boxes with a 1-up and marbles on top.