This was an absolute nightmare. It has always been a somewhat tough level, but I used to be able to cruise through it in a few attempts without ever having to worry about making a jump, always feeling like I was in control. Now that you can no longer run over small gaps and jumping/bouncing distance is shorter, it's simply too tough, and for all the wrong reasons. The worst part is by far the turtles after the second checkpoint, but when I first tested this level, I even lost several lives on the first jump forwards. Thankfully, the hardest parts are in the first half, and most of my roughly 60 attempts ended there. To top it off, you also have one of the toughest bonus stages here, but at least they made that last bouncy box solid so you don't have to pull off that spin-jump. Slippery Climb should be a walk in the park after this.