in a 3d game you could have a roc's feather but you could make the jump an action icon that pops up when you are near an edge and running kind of like throwing pots, Then you could jump over it.
Oh? yeah I could do that ....
But the kind of jump I was talking about to make was more like super mario jump(but not so high, more realistic"banjo style")
so you could jump when you want ...........