- x Lord Revan x
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- Forum Ninja
While you could search for videos, it would be easier to explain.
Halo 2 uses the Havok engine. The engine has some error present in Halo 2 that result in fissure points that when landed upon in a certain manner can result in a super bounce. Quite literally, your character will catapult into the air. These are glitches in the code and therefore, use of them on live could be considered cheating under the Terms of Use on Xbox Live.
BxR, BxB, etc., are button combos. When pressed with proper timing, it can reduce the time between functions. pressing B will activate a melee, then X will cancel the action, and pressing R will then shoot. It is especially useful with the Battle Rifle.
As mentioned above, they could be considered by some to be worry of cheating feedback since they are against the Terms of Use. They are in game exploits, aka glitches, and despite a vast majority of people having used them on live when Halo 2 was in its prime, they still can be considered cheating.
Although, I should state Bungie will not ban you for using them. They will only ban you if you accumulate a lot of cheating feedback from the use of them and that relies on other players. Its opinion based on whether someone will give you feedback.
The general consensus is that they are fine, especially since MLG actually used the combo when Halo 2 was on the circuit.