How to prevent Charakter from walking to left margin when object above is clicked.

Should be no problem at all. The amount of work is the same, you just have to get the conditions right - like you said.

that's good news! fancy helping me on the video tutorial on this topic? i already created all graphics required for this and acutally i have the inverted start for it. check this thread:

http://www.visionaire-studio.net/forum/thread/video-tutorial...