I Will Go See What Entity It Is (edit: i found it was a black oval with blue around it! also why do you fall in the void at room 200?)
Here's The Story: If You Don't Want Any Spoilers Don't Scroll Down!
After Whacker Guy Defeats The Final Boss From The Fifth Game, The Boss Shoots His Gun Just In Time Before He Dies To Send Whacker Guy To The 8 Bit World! Whacker Guy Must Find A Way To Get Out Of This World. But Then, After Whacker Guy Makes The Guard Blocking The Portal Back To His Homeland Run Away, He Realizes, The 8 Bit World Is Actually Pretty Cool. So He Decides To Stay And Live His Life In The 8 Bit World! Eventually, He Gets Too Old And Is On Life Support. They Eventually Pull The Plug And His Relatives Are Mourning About His Death! After That It Fades To A Screen Showing Whacker Guy In Heaven. After That It Fades Again To A Black Screen Saying, The End! And That's How The Series Ends