Level I - The mouse must get ten (a variable that can be changed in one of the stage scripts) pieces of cheese before the cat catches the mouse. The mouse has two lives. The mouse can get additional lives by touching the start when the star is visible. The stage and the cheese control some of the processing. The cat only appears in Level 1. Level 2 - The mouse must get 10 pieces of cheese to win this level. If the mouse touches a red dot, the score goes down by one. The mouse can also use portals, when they appear, to move to the other side of the stage. The portals will appear either at the sides of the stage or at the top and bottom of the stage. The mouse has only one life in Level 2 and cannot gain any additional lives. Other ideas: Change the size of the mouse when you change levels. Change the speed of the mouse when you change levels. Change the size of the obstacles.
For edx CS002x.
