G.I. Joe: The Rise of Cobra was, generously speaking, not good. But the upside is that the sequel has nowhere to go but up. And by the looks of it, G.I. Joe: Retaliation has picked up that gauntlet, filled it with gunpowder and muscle, and jammed it down Cobra Commander's throat.
Listen, there's no use in pointing out that Retaliation seems to have the same basic plot as The A-Team and The Losers and Mission: Impossible—Ghost Protocol (badass tough guys framed and left for dead by their government masters). Or that there's no way housekeeping would allow those giant Cobra banners on the White House.
This is a movie with hot blind swordswomen, the Rock firing guns the size of fenceposts, an apparent lack of Marlon Wayans (the Jar-Jar of the G.I. Joe universe) and the aformentioned flying ninja fight hanging from the side of a mountain.
It's entirely possible that G.I. Joe: Retaliation will turn out to be bad. But judging by this, I can't see how it'd be boring.