How do I create random movement-platform game

i want to make a random movement for a platform game,but sine movement is for top down games right?

Sin movements are also for the right-left game....

You can use also the random expression with a waiting time, also this one in random...

https://drive.google.com/file/d/0B6Rq6j ... ZPZV9Eb28/

Thank you argail for this answer,but I need more explanation.

And this file you posted,I will not be able to see it because I don't have my laptop neer me now.

I will see it after tomorrow.

Anyway thanks,but if you can explain much more it will be better for me.