A tip for getting the 50000 pixels achievement on insane: press p after clicking on the screen at least once. Then proceed to mash the p button as you move your mouse across the screen.
I figured it out, disregard previous comment. It's not glitched you just have to find the one that is wrong, there is no text which is what threw me off but I got it rather quickly.
When I put slide 2 into the micro scope and identify a cell there is no way to exit looking at the cell. I 'm not sure I'm missing something or this is a bug but it stopped me from playing.