FailFast1: dash mechanic

I am trying to challenge myself. Im not happy with what i got taught at university and as a result Im taking matters into my own hands, over the next 6 week break I plan to make as many games as I can giving myself only a few games to make each one to try and one boost my confidence in my skills and two learn new ones. this is the first of many games in this one it is a simple dash mechanic any feed back is welcome also if the file is to big for what it is any advice on how to make it smaller or...