I am having trouble to free the scientist in level 8. I can't find the key lock anywhere.
There are pillars (with dragon heads) you can attack. Then you will find dynamite (to the left) that you can wire to the dynamite trigger. A part of the wall will go away and you'll be able to save her (him?). The key hole is green.
I thought it was orange? Oh well, thank you for the help! I gots it.
Oh sorry yes, lol. There is a green lock but the one for the scientist is indeed orange. My bad! ^^