Hi everyone, I'm new in this run so, Can someone explain to me how I can do it? plz

I tried a lot but never works

First of all you need to bounce on the grey metal bouncy box in snow go 200 times, this takes 3 minutes 6 seconds.

Then the important bit, you need to spin crouch everytime you land to make the game think you are still in the air and kill 25 seals (each seal = 1 crystal) If you have done it correctly everytime you kill a seal you should hear a click sound.

You should glitch high jump before you kill the first seal so that all 3 of them count towards getting a crystal. You can do a normal high jump but only 2 of the 3 seals will count.