To move the character, you have to use arrows keys, and to shoot, you have to use space key.
A little tutorial is displays in the biggining of the game, your goal is to shoot the pumpkins that come out the canons and to collect the candy bowls inside. To collect them, you have just to touch them with the character.
Every time you collect a candy bowl, your score rises by one point, but if a pumpkin go out of the scene (behind you), you lost a point.
Every time your score reach 10 points, it is reinitialised in 0, and you level up, it means that the pumpkins go faster.
If unfortunately, your score go under 0, or if you hit a pumpkin, it signs the end of the game and it is over.