Scoring 

Instead of just counting up how many times the goal has been reached, create scoring system. Choose the amounts, but adjust the score for the following (and more if you wish) 

• • Reaching the goal 
• • Killing/catching an enemy 
• • An enemy destroying a goal (negative points) 

Mine (Trap) 

If the user presses the space bar a mine will be dropped at their current position. If an enemy moves onto the mine, the enemy and the mine disappear. The user scores some amount of points and a new enemy immediately appears at a random place. The user can only have one mine placed at a time. If one already is placed on the board, it disappears and moves to the current position.