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Nemesis Factor
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Nemesis Factor

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Product Awards:  
Games Magazine Awards
Best Puzzle, 2003

Ages Players
10+ 1-5

Manufacturer(s): Hasbro

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  • Please note that due to manufacturer restrictions, we are unable to ship HASBRO products outside the United States.

Product Description

Ask yourself this: Do you mind when answers lurk just beyond your fingertips? Will you be able to handle the sleepless nights? Is your threshold of mental pain higher than most? Can you force your brain to think in ways it never had to think before? One hundred puzzles that sense light, motion and weakness.

Nemesis Factor is a collection of 100 puzzles that change in difficulty as you progress. To complete a puzzle, simply figure out how to light the buttons in order. Use as few moves as possible to increase your score. But be warned: Finding the correct order requires knowledge in any number of areas, including mathematics, science, music and general logic. Complete all 100 puzzles and earn bragging rights to which few can lay claim.

Product Awards

Games Magazine Awards
Best Puzzle, 2003

Product Information

  • Manufacturer(s): Hasbro

  • Year: 2001

  • Players: 1 - 5

  • Ages: 10 and up

  • Weight: 388 grams

  • In order to play Nemesis Factor, you will have to provide 3 'AA' batteries


  • electronic puzzler game
  • stand
  • instructions

Product Reviews


Average Rating: 4.4 in 8 reviews

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Ultimate puzzle
December 14, 2003

I got a Nemesis Factor for Christmas a few years ago, as soon as I opened it I was doomed to spend all my time working on it. I got almost to the end when I broke it (wasn't looking where I was going and tripped). Now I'm looking everywhere for one but most places are constantly sold out or on back order. This truely is the best puzzle out there.

by Tina
Challenging and addicting
January 03, 2003

Once you start playing this, you can't put it down. It becomes an obsession, and you're compelled to keep working to solve the puzzles. This game requires patience and is not for someone who doesn't like challenges. Just when you think you have a puzzle solved you realize there's more to it than you expected. I love the way it keeps drawing you to it to conquer the code. I started playing someone else's game over the holidays and now I'm looking all over for my own.

by A Gamer
Nemesis is the best game ever!
February 04, 2012

every since my game quit working,I fell lost i lived on this game if anyone is willing please,im lost.This game realy chalenges your brain.It's the best game i ever had,or played!please put them back on the shelf. give the kids a way to use their brain for something besides violence!!!!

by A Gamer
How do you solve this?!
January 23, 2009

This is truly the best puzzle ever. Even though i have had it for a pretty long time I have only managed to get to level 14 but anyway, a very fun puzzle. For a very long time I have had it without knowing what it was until I turned it on. This is not only addicting but most importantly fun. Anyone that has money to spare should invest in this. It is money well wasted.

Very challenging; not for the faint of heart
April 04, 2004

This is a very challenging game. It can also be very frustrating. My fourth grade students will stick with it for days just trying to beat my score. It teaches strategy, logic and determination. Not for those who give up easily. Because it is meant for 'higher-level' thinkers, it is somewhat hard to find in stores.

by Marco
Low battery loses ALL data
January 10, 2003

This game has been fun and challenging for us. The only two problems are that 1) Some of the puzzles simply rely on a table of data that they made up; there is NO logic to them and 2) There is NO battery indicator that tells you that the power is getting low. Ours was working fine and then it just reset everyone to zero because the batteries were low (not dead).

by David
Annoyingly addictive...
October 28, 2002

Very clever device that is more than meets the eye. I found it very difficult to put down until I had completed the whole thing. While it provided hours of fun (15+ hours, I would estimate), I now find it has little use other than as a decorative object. Definitely a worthwhile investment for anyone who likes puzzles.

Good but could have been better
October 15, 2002

First, let me say that I like a lot of the puzzles in this little box. Some have a very clever design.

What I don't like is that some puzzles are based on flipping the little BB around inside of the unit in the right way. This wouldn't be a bad thing but the device for testing the orientation is cheap and inaccurate. This requires several trys after a solution is known. I'm not sure how others without coordination could get past these puzzles.

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