Unfortunately, I'm running into graphical problems with V2.0. I have a nonstandard monitor resolution (1280x1024), which cuts off the edges of the screen. If you could add a way to adjust resolution, that would be handy.
I've only done one puzzle so far (the rightmost one) but I think V2.0 is a big improvement! Movement is much more fluid and I love how bouncy and expressive the character is, especially giving the magnet a face. I also think that throwing the magnet into the pipes to open doors is really neat, and helps explain how the magnet travels with you.
One thing is that I find the level reset a little clunky. It only draws a black bar across the middle of the screen, rather than the whole window. At first I thought it was opening a menu. (This might be due to the aforementioned resolution issue, I'm not sure.)