Credit: From KDFans 2013 Opening Week Report Part 1 (Planet Snoopy)
Apparently considered an attraction, Ladder Climb is one of those skill games in which the "victim" must crawl across a rope ladder that gradually suspends higher and higher over an air cushion as they attempt to press a red buzzer at the end and win a huge prize. Sounds easy enough, right? Factor in extreme instability and balance of the twisty rope ladder and you'll be on your butt in a few seconds. I tried this just to see what was so hard about it. There's not balance on the crazy thing, and I fell a bit past halfway (which was more than I'd expected, especially since many people don't get far past about a third of the way up)! I will say it's pretty fun, but I'll leave it up to you to decide if falling on your butt on an air cushion is worth the $3 per play (or two plays for $5).
While it's technically a game, the park seems to consider it an upcharge attraction, not a game. This is confirmed by the Attraction Safety Guide sign, like those at the entrance to all other attractions, posted just before the Ladder Climb entrance, plus an "Attraction Thrill Rating" or 4 ("High Thrill Ride..." Really?). Also of note is that the park map does not list Ladder Climb under the "Games" section, although it's not listed anywhere else, either. It does seem more marketable as an upcharge attraction, though, so it kind of makes sense. I guess between this, Dinosaurs Alive!, Thunder Raceway Go-Karts, and Xtreme Skyflyer, they now have a whopping count of four (4!!) upcharge attractions. Yowza. At least this one's fun enough for the price, though I still think Dinosaurs Alive! is worth a try.
Anyway, here is the thread for this "Attraction." If you want to try, it's located between the south Planet Snoopy entrance between Lucy's Crabby Cabbies, Three Point Challenge near the end of the Grove, and just before the entrance to Congo.