| Prototype
                                Differences  | 
                    
                      | There
                              is no title screen. | 
                    
                      | Only one sound effect has
                          been implemented.  A "ding" sound is made when
                          your blaster shoots a mushroom. | 
                    
                      | The text "Select Starting
                          Score" is not shown when selecting the starting
                          difficulty level. | 
                    
                      | If the player starts the game with
                            the fire button they cannot select the difficulty
                            level. | 
                    
                      | The game
                          starts out very hard. | 
                    
                      |  
                              Multiple spiders come out from the start (up to
                              three). | 
                    
                      | The
                            score font is different. | 
                    
                      | The stage colors and
                          order are different: Blue > Gray > Teal > Red
                          > Blue > Yellow. | 
                    
                      | The game starts with four
                          lives. | 
                    
                      | The on screen point font
                          that appears when shooting spiders is different. | 
                    
                      | There is no death
                          animation. | 
                    
                      | There is no "Game Over"
                          text. | 
                    
                      | The blaster is taller. | 
                    
                      | The
                            blaster moves faster. | 
                    
                      | There are no points shown
                          on screen for shooting bees. | 
                    
                      | After the player dies there
                          is no point add up for the half-shot mushrooms. | 
                    
                      | Only
                            Spiders, Bees, Millipedes, and Beetles are present. | 
                    
                      | Multiple beetles can appear on the
                            screen at once. | 
                    
                      | The DDT cloud is different. |