Cheats for Windows SkiFree (PC)
After going off a rainbow jump, press side and up(diagonal up) and just before you land, press down twice. You get about 300 points. Do the same on small bumps, don't press down, and crash to get about 100 points. Go underneath the ski lift near the bottom for heaps of points. If you push F while in the air on a rainbow ramp, then hold down UP, LEFT and RIGHT you can score about 800 points on one jump.