I played this game to completion back in 2010 and keep coming back to it every few years. Between the puzzle platforming and the soundtrack, this game is definitely top 10 all time in my head.
Idea for String Theory 3: the three researchers themselves are strings wriggling along a path set by dots to get to the wormhole that should (hopefully) get them back up a dimension. It could just as easily turn them into points on the zero dimension.
It would help if you installed a Reset button (like R maybe). Also, it seems you can't jump while moving right simultaneously. That's all I could figure out, though, because I fell between two platforms that were seemingly pressed together.