when you press the a key you will stand normally. when you press the s key you will rear up into hind leg position. when you press the d key you will look as if you are in mid air of a jump when you press the f key you will be coming down from a jump. when you press the j key you will swipe . when you press the k key you will arch your back.
credits to @5109check he/she did a great job on this and i also wanted to animate this!