I chose a joke font for tutorial (joke is that it's psychopath-y one) and I forgot that It's difficult to read. To pass this level you need to block the light of one guard with blue box, and block the other guard's light with normal box, then use blue box to kill the guard on far right. And there's one more light to block with normal box. Sorry for bad font! (it says above your head, that this box NOT ONLY BLOCKS LIGHT but also kills guards, so fault's on me for choosing the font) Thanks for feedback though, I appreciate it