Hi there !
I'm Marc, a very enthusiastic indie dev by night, though my real job has nothing to do with informatics.
I'll be doing this jam alone. I'll use libGDX (off course !), probably Box2D and Tiled Map Editor. For the graphics part, maybe I'll express my inglorious pixel art skills with photoshop CS6. For the sound, I guess I'll go with a sound generator like Bfxr.