Bounce recoil with physics platform movement

I'm making a platform game using the built-in physics platform movement, and I'm trying to get my character to bounce off on enemies when he jumps on top of them. I've used the regular Platform movement before and I've been able to accomplish this by simply setting the character's direction to up and their speed to a high amount, but that doesn't seem to work here. Does anybody know how this can be done?

I've tried to simply make my own platform movement by using the static physics movement, but I can't get it to work right so I gave in and used the built-in one (though it seems to be causing more trouble that it prevented). I would just use the Apply Impulse function but that doesn't work with the platform movement.

I used a cheesy method that looks, "ok" but maybe it can point you in the right direction. just set the character's Y position to a negative amount. :D
here is what it looks like, I am also using the physics platform movement.
https://youtu.be/4652ueiyVKg?t=1m33s