| 
                       Prototype
                              Differences  
                     | 
                  
                  
                    | 
                       The
                            title screen is different.  This version has a
                            patch of mushrooms arranged into a giant mushroom
                            picture. 
                     | 
                  
                  
                    | 
                        The graphics are
                            very different: 
                     | 
                  
                  
                    |       -
                        The mushrooms are much taller | 
                  
                  
                    |       -
                        The player is shaped like a space ship instead of being
                        a square block | 
                  
                  
                    | 
                             - The
                          Spider is shaped differently 
                     | 
                  
                  
                    | 
                             - The Beetle is much
                        smaller and less detailed | 
                  
                  
                    | 
                        
                                 - The Inchworm is
                            smaller 
                     | 
                  
                  
                    | 
                               - The earwig is larger
                          and shaped differently | 
                  
                  
                    |       -
                        The bee is different | 
                  
                  
                    |       -
                        The mosquito is much smaller | 
                  
                  
                    |       -
                      The dragonfly is shaped differently | 
                  
                  
                    |       -
                        The DDT bombs are simple rectangular blocks | 
                  
                  
                    |       -
                        The DDT cloud is different | 
                  
                  
                    |       -
                        The poisoned mushrooms look like different colored
                        regular mushrooms (no glowing dashes) | 
                  
                  
                    | The
                          colors are different (such as the the area where your
                          player can move) | 
                  
                  
                    | The score font is different | 
                  
                  
                    | The sound effects are
                        different | 
                  
                  
                    | The game
                          is much faster and harder overall | 
                  
                  
                    | 
                       There are more mushrooms on the
                          screen from the start 
                     | 
                  
                  
                    | There is no game over screen.
                         The game simply goes back to the title screen | 
                  
                  
                    | There is no "Select Starting
                        Score" stage select | 
                  
                  
                    | This version contains a
                        children's mode (indicated by a teddy bear) | 
                  
                  
                    | Extra lives are accquired at
                        10,000 points rather than 15,000 |