In this level, if you have already played Level 40 or bought the Lizard in the shop, we strongly recommend using the Lizard. Its high jump can ignore the mogul skiing (ice ramps stuck together closely and tightly) thus letting it pass the level easily through jumping non-stop. The ramps are unpredictable and if you can see one, try to avoid it.
The Runner moves faster, and if the second-last time of a platform is an ice ramp you will skim the final platform and fall off. All but the last five or so ice ramps are safe to step on, though some may have random holes in the platform after the ramps. Toy with the level, play with it, discover things, and you should be able to pass as the Runner, though without the grace of the Lizard, never touching the ground.
Overall, this level is not too hard, however the mogul skiing is quite a challenging feature, often seen later as well.