A really cool concept! There were some fun gameplay moments in there, for sure. I'm not sure how it was for others, but I found the mapping of the right mouse button for changing dimensions to be a bit awkward since it was physically unrelated to the shooting mechanic (which requires both mouse movement and clicking). Maybe it would have helped to have "W" be the jump button and then use the space bar for changing dimensions? I dunno -- but it's a good game and quite challenging even in normal mode.