You are a very funny little green alien and your goal es to get all the white sheep into the teleporter an send them home. You can do that by positioning your ufo above a sheep and quickly press the space bar button to open the tractor beam. After that quikcly again, point your ufo above the teleporter and again press space bar button to drop the sheep. Your tractor beam will stay open only a few moments, so harry up. The black sheep are not to be teleported to your lab. On some levels the access to the white sheep will be blocked by different obstacles. Remove these obstacles by dropping a bomb near them.