Introduction - If you have any usage issues, please Google them yourself
This game is a total of 4 off, from easy to difficult, each has its early, keys, reset and exit function.
(1) initialization, including initialization screen initialization and each hurdle, the screen is initialized 80 pixels wide and 25 pixels high.
(2) key processing including mobile the villain and mobile box, so by moving up and down keys to control the movement of the villain, so as to promote the box to push the box to the specified destination for clearance.
(3) Each level can be reset, press the spacebar to reset the current shut.
(4) at any time by pressing the Esc key to exit the game.