This game was pretty awesome for its time and it was also very simple but viciously entertaining. It consisted of locking a trail of lines that moved inside a box. You had a certain amount of time to lock it in by adding walls to limit his moving space, and you also had to be careful not to let the bombs catch you. As the game progressed more trails of lines, faster every time you passed a level, for you to lock appeared and you had to reduce their moving space more and more as you progressed. I really don't know if the game had an end because it was very difficult, but this game was very entertaining, and highly addictive, time flied when you sat down to play this game. I played it on an arcade and I still have the original Game Boy version. Thank God I still have a Game Boy Advance system that plays back games like this one. It is definitely a classic.