Some things you have to do to go through that level, I don't think it would even occur to me to try those things to keep going forward.
But then there is the sense of pacing, of going forward and fast and there are not much things you can try but using what is in front of you (turtles, enemies to jump etc.) and you can only go up, down (when possible) back and forwards when you play 2D Mario so I guess eventually you figure those out.
There may be online tutorials for that level, maybe.
Love them 2D Marios. xD
Nintendo is selling their IPs to Microsoft and this is true because:
http://gamrconnect.vgchartz.com/thread.php?id=221391&page=1










