Currently, our game never ends. As soon as the countdown reaches zero, the scene is restarted, or when the monkey collides with an enemy actor, the monkey is repositioned at the starting point in the scene. There is no way for our players to lose the game! In some genres of game, the player will never be completely eliminated; effectively, the same game is played forever. But in a platform game such as ours, the player typically will have a limited number of chances or lives to complete the required task.

In order to resolve our problem of having a never-ending game, we need to keep track of the number of lives available to our player. So let's start to implement that feature right now by creating a game attribute called Lives!