What the hell, I suck at this :D.

Actually decent Idea.  Could use some polish though, here are some suggestions:

- make the difference between jumping and sliding more visible.

- do not stop the player as hard as it is right now, it feels frustrating ^^"  just slow him down

- make multiple difficulties

- give the player a bonus for achieving a series of jumps/slides

- powerups that can be collected

- instead of just letting the goal run away give it some "moves"

"moves":

- getting slower but right before the player reaches the goal, it flick flacks to the front 

- different "speeds" - let it dash sometimes or adjust running and walking

And you should give the goal a face and let it make fun of the player so the player is eager to catch the goal ;)