This is my most accurate difficulty chart of the DK64 Bosses. Out of these, Mad Jack's (3) my favorite on design. The pufferfish is probably the worst one of the entire game for a lot of reasons (Article Rant)
I'M ADDING THE BADGE. I made it in Scratch. That is a lot of points! Good luck trying to get it now... Only attainable in endless mode, HOW WOULD YOU GET IT IN STORY MODE? I think I'm 95% or 90% done with the game.