Ok. I'm not sure where you change the level, but where ever that happens, you need to set the score to 0, and set the score text sprite to 0 aswell
 

wade.app.score = 0;
_.scoreText.getSprite().setText(wade.app.score);

As long as your score object is still called scoreText and has been added to the scene, this should work.
 

this.owner.objectToFind = false;
wade.app.score = (wade.app.score || 0) + 1;
_.scoreText.getSprite().setText(wade.app.score);
if (!wade.getSceneObjects('objectToFind', true).length)
{
    _.congratzMessage.setVisible(true);
    _.timer.stop();
    _.arrowbutton.setVisible(true);
}
        return true;

you want me to put that code here?

uhh i think its working

when i export to android i cant hear the audio

i dont understand sir i have 2 lvls that has lifepoints. should i code again in lvl3 ?

sir everyscene need to have hiddenObject.js? that what i did