I can't use the yellow gun

[Bshop]

Hi, I've got the yellow gun and I understand how to use it but I just can't. I don't know why my target stay in the same postion, even if I move my mouse i'ts very difficult to make the blocks moving....so I can't resolve many puzzle because of that. Is my mouse the problem? Or a bug ingame? Please help me!

[mato]

If middle mouse button isn't working for you, then you could try using the left Control key instead, which is also bound to the same action by default.

[Bshop]

It's work! Thank you, you saved me!

[PicAxeAndChill]

hahahaha I went through this exact same thing!