Gaaah.
This is my first effort at doing something in Fusion (apart from tutorials), and it shows. I've been at it all day and don't even have the bare bones hammered out yet. If I can't figure out how to make Li'l Guy climb a ladder when he encounters one, I'll have to abandon the project.
Have sent a plea for help to ClickFusion Academy, and we'll see if anybody answers it by morning. Meanwhile it's 11:30 pm, so I'll need to get some dinner and then do my actual paying job until the small hours.