Trace has proven to be a game that Ill continue to play for years. Nuances in the game keep it interesting. For instance, when you "jump" in the space world, you jump higher than the other worlds. The complexity of Trace keeps it challenging. I havent figured out all the levels, even though Ive played this game since it came out, nor have I gotten frustrated... Engaging for all ages, including children as young as 5 or 6 years old. My 6 year old loves to get his character over the exit and then "erase" the floor to fall into the next level...
TIP: I use the "screen capture" function of the iPhone (or iPod Touch) to save a picture of different solutions. Once Ive solved a puzzle, Ill often replay it with a different technique. I can save photos of my various solutions by pressing the home and sleep/wake buttons on my iPhone at the same time. The resulting screen capture is stored in the photos app that comes on your iPhone/iPod Touch.
mama2one about Trace