Tetris with 49 unique blocks, Block Drop is very mentally challenging and will test your ability to visualize 2 dimensional space. This is not a timed game, pause the game at any time to study the playing field. Slide blocks in from the side to fill in holes left behind from other blocks that didn't fit correctly. Many other interesting features. A unique feature allows you to slide the blocks sideways and fill holes left behind from previous blocks. As blocks fall, use the arrow keys to move, rotate and flip the blocks. When the blocks form complete rows, the rows are removed and the blocks from above fall to take their place. Use bombs to remove blocks. With enough points you can CANCEL a troublesome block or do a 'TOP SWEEP' to remove the top 4 rows. There are 4 levels of difficulty, the hardest level has 49 unique blocks. To be successful you will need to think ahead. If you turn on 'CISCOS CAVE' you will be shown the 'next block', but you will earn half the points. System: Pentium or 80486, 256+ colors, 1.1 Meg on hard drive. Ray-traced blocks look best with high-color or true-color. ONLINE ORDERING at http://www.mgsoft.com/online.htm