Flight of the Season

Points

If the player clicks quickly enough on the same house (or the same cow in the later sequel), the game tracks each successful click as a legitimate point -- meaning in this game Santa is delivering presents to some houses two times or more while others go neglected! Why not slow the sled down and dump them all down one chimney for neighbourhood redistribution?

Despite the title-screen exhortation to "click on the houses as fast as you can [emphasis mine] to deliver as many toys before Christmas comes", this behavior is presumably due to a programming oversight, but is nonetheless a useful exploit for those hoping to achieve high scores.