Playing Games To Get Ideas

Maybe In my game I can put some power ups so people can  get exited once their are playing the game.Another idea I got was that once everyone passes one level maybe the words cn flip around and stuff.Our game is gonna keep time so that the person can cacth all the bad people in our game.I'll start by wacthing tutorials of how to make stuff so It can help me with it.Maybe the one with the timer thing will help me in my game.