Platformer with a mechanic inversion skill: At will, but only once each level, reverse the behavior throughout the level of the two different platforms and two different enemies. Collect the one bullet in each level for brief advantage over enemies. Acquire hearts as you progress through the levels, to become tougher for the later stages.

Very few levels, but decent promise.

If you want to avoid the music or sound go to either:
http://experilous.com/1/ludum-dare-28/prototypes/2013-12-16/4/no-music
http://experilous.com/1/ludum-dare-28/prototypes/2013-12-16/4/no-sound

To see all the versions that led up to the final one, visit:
http://experilous.com/1/ludum-dare-28/

Implemented in JavaScript with the aid of CreateJS. (http://www.createjs.com)
Sound effects created with sfxr (http://www.drpetter.se/project_sfxr.html)

Programming and Music by Andy Gainey (http://experilous.com)
Artwork by Joshua Skelton
Additional Level Design by Josh Grondski