https://dl.dropboxusercontent.com/u/11127546/platformengine.capx
It's mine, but it should work for any platformer. It's only graphics and animations, one bug I can't remember (it's with jumping, that's a little hint) but all in all it's a nice package. Has backdash, attacking, backflips, sneaking, blocking, the works.
Also, there are TONS of animations NOT being used as well, so enjoy!