Please please help me find this game!?

I used to play a DOS game a long while ago. In the game, you are basically required to use the little guy ( rounded shape ) to eat your way out. you have blocks that you can slide away from your way, but they also can fall upon you and kill you. it had many many levels and it's very small ( actually i used to have it on a floppy disk !). I know it's a lame description but this is all I can provide! I tried for weeks to find it online with no luck! please, does anyone have any idea?