How do I make monsters move around?

I am making a game in which I want there to be a monster moving around that you have to avoid. I can’t figure out how to make it do this. Can anyone help me?

this question is asked too often, we need a FAQ for common questions…
make an object, make it moveable, in behaviors add [always] – [number #] – [velocity (forwards)]
And add [collision (left and right) (any)] – [flip (toggle)]
to have avoid [collision with “player name”] – [next level (restart level)]

Where is the collision with player name at? just wondering for my game