I decided that since my old (terrible) engine was recreated anyway, I would try my hand at submitting my new and improved engine. I created this in the span of about a week, using existing sprites and sounds from the YoYoYo Engine where applicable.
This engine does not include enemy or boss objects (yet, as of version 0.1.) It does have updated code for platforming, and a more centralized manner of controlling physics.
It also incorporates a means of saving custom screenshots, customizable controls, and adaptation to USB controllers. We'll see where it goes.