Expert floor 42 has a lot of diagonals, it has a blue goal, green goal, and a red goal. it is incredibly difficult unless you know where exactly to go. Blue Goal you turn to the left and keep a consistent diagonal maneuver which is hard enough. Green Goal you turn to the right and make more minor adjustments which is even harder. Red Goal this is easily the hardest to conquer, you have to go behind the goals and go on more than 2 times as many Diagonals as before with many adjustments, it also offers alot of bananas. The green goal warps you to floor 44 while floor 43 is very hard, while the red warps you to floor 45 and skips floor 44 also which is still hard. In Super Monkey Ball Deluxe this floor is given an 8 out of 10 difficulty rating and is named Checker.