Good concept, not a ripoff, but...
People keep mentioning The Company of Myself. Play it again. The game mechanics are similar but still very different. It certainly seems to be inspired by Company of Myself, but I could care less rly.
I'll try to offer some helpful advice rather than "ZOMG TOTAL RIPOFF D00D!!!11" :P
I could really like this game, but I'm running into too many bugs to make it playable. I have to admit that I kinda ragequit after several levels of trying not only to figure out how to navigate each level but also trying to navigate around these bugs.
When I sent one of the "imaginary selves" rolling towards a wall it would bounce back. If it hit the character from a certain direction, for some reason I couldn't move in that direction anymore. Resetting the level seemed to fix this.
Another one I noticed was, if I had to jump and hurl one of the imaginary selves up to a ledge, sometimes pressing space wouldn't do anything. Occasionally it would go flying in the wrong direction altogether.
I also noticed an exploit in one of the first few levels where I could position myself in front of a moving platform and the platform squished me through a wall towards one of those gravity changing platforms and then to the exit.
Also, you may want to tweak the controls and physics a bit. The little ball's movement seems to be a bit...off. It was sometimes difficult to get him to move exactly where I wanted him. It wasn't that bad...just enough to add to the annoyance
I liked the setting, I liked the music, and I especially liked the puzzles. The bugs and control issues, however, made the gameplay go from mildly frustrating to "AAAARGH!!!" I gave you an extra couple of points for effort.
I'm not sure if any of that will help you out, but I really think this could be a very good game if you just work out the bugs. I think it could be even better than that other game that everybody keeps accusing you of ripping off. :)
Right now...not so much. Good luck.