barrel setAnchorPoint:ccp(0.5,0.5)];
id scaleUpAction =  [CCEaseInOut actionWithAction:[CCScaleTo actionWithDuration:.35 scaleX:1.5 scaleY:1.5] rate:1.0];
id scaleDownAction = [CCEaseInOut actionWithAction:[CCScaleTo actionWithDuration:.35 scaleX:1.0 scaleY:1.0] rate:1.0];
CCSequence *scaleSeq = [CCSequence actions:scaleUpAction, scaleDownAction, nil];
[barrel runAction:scaleSeq];

id scaleUpAction =  [CCScaleTo actionWithDuration:.35 scale:1.5];
id scaleDownAction = [CCScaleTo actionWithDuration:.35 scale:1.0];
CCSequence *scaleSeq = [CCSequence actions:scaleUpAction, scaleDownAction, nil];

CCSPrite *tmpSPrite = (CCSPrite *)myBody->getUserData;
if(tmpSprite)
  [tmpSPrite runAction:scaleSeq];