Very solid concept, I can certainly see this succeeding long term with more polish. I had a few frustrating moments early on due to a lack of directions, plus the control instructions indicate Right Shift for character swap but it's actually Left Shift, so for a while I didn't have the luxury of swapping to the faster guy, obviously making the game a lot harder. (Still cleared the level, haha.)
Collision detection of the containers and the camera was a bit inconsistent, I was able to drive off the screen in multiple areas, not finding my way back due to invisible walls, while I could drive through some of those blue obstacles.
Loved the clean and functional menu. Great job in just a week!