SPOILER ALERT!!!! Don't read further if you want to solve the bosses on your own
For all the people who can't beat the bosses:
First one:
Move your mouse to the green square and right click, then move your mouse to the red cricle and click twice.
Second:
Just move to top of the safe...
Third, when you see the boulder coming right click and you will be able to go through walls. The rest you can figure out yourself...
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 "ButtonHunt 2"){kind=icon}