When my character jumps on a platform I want the platform to kinda squish down and bounce back up. Is their a way to do this simple animation straight in build box or will I have to use a different software? If I do have to use a different software could you link some good animation software for me?
An animation is created with multiple png's. Create all the necessary images that show the animation then copy/paste them into the respective Animation box. Check this video out which should help you get the concept.
Just to add on to this. In Spriter Pro all you have to do is create the motion and it will auto spit out the png images. This might be easier for you.