The new version adds a fourth, very challenging, level to the original three.

Simply draw lines to get the elves moving in the right direction through 30 fun, yet challenging levels.

Draw lines and direct them to the waiting sleighs in 30 challenging levels.

The game includes several challenging levels, from the sewers to the circus.

Play more than 100 fantastic and challenging levels where you figure out the best way for the Peablins to hold hands.

Gather resources such as wood, stone, and food in 41 challenging levels.

Both games have 20 challenging levels and were featured as game of the week on the Nickelodeon web site.

Use three types of hints to get through more challenging levels.

"I think even some of us who do a lot of writing and speaking would find the 'advanced' level very challenging."

There are no power-ups, although the rate of fire increases with more challenging levels.