Platformer game!

Controls: use the arrow keys up, left and right to move, additionally you can use the keys w, a, and d for movement and spacebar to jump if up or w does not appeal. 

Objective: You must try and collect 3 coins before getting hit, otherwise have fun, I mean that's what games are for, am I right?

New update: Major: Run with shift! A brand new control!

Minor: Slight improvement to the code managing on a finite running machine now, also smoother movement cus sure y not?