Have you ever used the “Puzzle Pack” application for the z80 calculators? This is an exact port of the “Block Dude” within the “Puzzle Pack.” In this game you move a little person around the screen in order to get to the end of the level. You have to pick up, and strategically move blocks to get to the end of the level. The levels increase in their intensity; therefore, there is a password-type save function so you can revisit your favorite levels and continue from any level.