The cacti come back up when you touch one, so it's basicly a race with checkpoint (the cacti)
When you touch helpbot, he will ask for 5 coins, when you give those to him, an arrow will appear around Bird that points to your next item/mission
@Leftconsin: I will update this week, then you will be forced.asked into the help page when you play for the first time :) I suppose by frustrating you mean the floating device?