The object of the game is to guide santa down the slope in the best style possible at the right speed to jump off the end and to collect the stars in the air past the end of the ramp ... simple eh ?
You only need to use one button on your keyboard which is the space bar.
There's two meters at the top right of the game screen, the top blue one has a pointer which rotates from left to right, this is the style meter and the best place to stop it is smack bang in the centre, the yellow meter underneath is the power meter, so basically how hard do you want to throw Santa down the slope.
The trick here is once you have pressed the spacebar to select the style DON'T LET GO straight after the style is selected the amount of time you hold the spacebar will deduce how much power you want to use.
Not enough power Santa will fall short and miss the stars, too much power Santa will fly over the top of the stars, it's tricky but keep going and you will get the hang of it :o)
Once you understand what you are doing this game is quite frustrating and will have you pulling your hair out for ages, having said that you will not want to be beaten and will keep trying to collect those evasive stars.