There is this old game that I used to play as a kid, its called supaplex
It is an awesome puzzle game where you eat green circuit board to clear space and move around. Objects all have gravity so you can crush yourself if you aren't careful. There are many levels and some of them can be very challenging, though having a little dexterity with the arrow keys can let you make small shortcuts i think. The game is very addictive!
Has anyone else played this?
(btw there is a newer remake... but it doesn't keep the visuals & music of the original. If you already have DosBox installed it works great!)