“The Bizarre Turtle Levels” contains more enemies per line than I have seen on just about any other world. The result is that the game slows down significantly, and sometimes the end gate simply disappears because the game cannot keep up with all the turtle shells. Additionally, since all these enemies are on the bottom level, you can beat this world by easily by simply jumping continuously. The only time I died was when the end gate disappeared making me feel this was both a pointless and poorly designed world.