Sorry, the second screen is too confusing because it doesn't clearly explain that the trunk is a one-way platform (it's solid if you fall on top of it). I felt that explaining this was leading too clearly to the first OOB, but I should have found a way to explain it.
man I got both ending and i'm stuck on the last part. Really good level design, it's funny to have difficult game like this where you don't know where you need to go
