I tryed and tested out my physic engine. I still haven't figured outn how to make other pbjects interact with each other realistically. you control the alien with the a, d and space buttons. to throw box, walk up to it and pressj,w. to throw press s. you can manipulate the box with your mouse by clicking and holding it down. to speed up the box movement, do not let box touch the mouse and reslease mouse to send box flying!!! can some one pllease help me improve the physics.