This skip saves 6-7 seconds

Here's the ideal position for the skip:

When you're there, keep pressing run, then JUMP + START

When in the menu, press LEFT, then UNPAUSE

Donald will fall under the slope. Crouch and perform a SLIDE.

When donald starts sliding, press RIGHT for jump one frame, then immediately DOWN.

Donald should get a nice boost, keep pressing RUN and DOWN until the end of the level.