Well, I think you tried everything so I'm not gonna give you a hint, I'm giving you the solution:
get off the Bonewagon and up the ledge. Take the bonewagon remote and lift up the wagon. Then walk towards this side of the screen, which will make the croc turn towards you. Then you take the remote and make the wagon go down again, which will cause the croc to get stuck with his tail underneath the bonewagon. Now you can climb down the ladder from the ledge and you're good to go!
We may have years, we may have hours, but sooner or later, we push up flowers.