Oh, I tought you were talking about the helicopters! Sorry about that! Yes, the button is random. :)
Viewing post in Jerry Broke The Wall jam comments
yeah. I was saying that since where the button appears is random, and you need to click it early to clear the jump over the helicopters, you don't really have the time needed to have the button appear, process where it is, move over to the button, and click it in the time span provided before the jump would fail and the helicopter fly into you. The helicopters flying in along with everything else were conveyed well with the large lines going down the screen to show when you needed to take action.