Seeing that the Cave has its own topic here, I'll start a help request for shapik
http://www.newgrounds.com/portal/view/608861
found it in the adventure gamer article CaptainD linked and it's nice and the soundtrack is pretty cool.
but I'm stuck on level 7, after killing the robot the door is shut and there is not hint to the combination of the door or am I missing something?
Hint:
Spoiler
How did you kill the robot?
meh, that was mean, thanks :)