You play a character called Murphy. You need to get enough colored triangles, called infotrons, on each level and then get to exit. Sounds simple, eh? Beware! You'll found stones, scissors, discs, walls and even more in this "simple" game. What I like about it is that it's easy to learn but VERY hard to master. Be warned that it's very addictive: I played for hours. On elmerproductions.com/sp you may find a SPEEDFIX version and editors, which makes the game even more addictive! In this game you will find 111 levels, starting from easiest and working your way up to the hardest. You can skip a few levels but no more than three. This means, if you have four unsolved levels, you won't get access to further levels unless you cheated.