These things are all so standard in games that I would hardly call them a "gameplay mechanic". Actually, I would call them "the game" as far as most platformers are concerned. And it's not like SMB handles it in a particularly unique way, either.Jumping is a mechanic. Sprinting is a mechanic. Wall jumping is a mechanic.
Yes, and it takes immense amounts of trial and error to realize that you can't wall jump that gap, or you can't reach that ledge that way, etc. The game is built around you dying and trying again--there is no gameplay outside of that....the level is layed out before you and you know how it's going to play out.
There is a standard that all games should meet, otherwise we consider them faulty. Being frustrated is something very few people enjoy.Man am I talking to fenn talking about all games need to do this or that.