Note: this thread uses default GameCube controls (L/R shield, B special, etc.), unless otherwise stated.
This tech was first mentioned on the Sheik board with @
TheReflexWonder's
video posted in @
tronfox64
's
Instant Needle Cancel (INC) thread. Please refer back there for the original discussion and to give them your love.
Introduction
What on earth is C-Bouncing? Well, it's a modified form of wavebouncing, which is a tech which allows the player to jump forward and then snap backward while facing the direction of the initial jump (
My Smash Corner made a video covering that
here). C-bouncing allows for a similar backward snap but with the awesome ability to be performed on the ground and with arguably simpler inputs.
Bouncing
To perform a C-Bounce, the player must first set the C-stick to Attack and then input

+

at the same time. When performed correctly, a C-Bounce should look very similar to a backward Wavedash in Melee; however, it can only be performed while already moving*.
There are three possible cases of orientation and momentum behavior upon performing this tech. The following will be illustrated as if you are moving to the
right:
- Same Orientation, Reverse Momentum: Input
+
while holding 
- Same Orientation, Same Momentum: Input
+
while holding or immediately after releasing
- Opposite Orientation, Same Momentum: Input
+
immediately after releasing 
*A stationary "C-Bounce" can be performed, but without any momentum, it only behaves as a B-reversal. This is an effective training tool but has little actual use.
Applications
- Along with the B-Reverse Slide Cancel, Sheik can slide and face in any direction out of a dash. This can be used for general mindgames or in conjunction with the INC to perform any jab, tilts, smashes, or specials with only a 7-frame delay. Of course, this requires very fast inputs, but with enough practice, the player should be able to do incredible things.
- It is also possible to perform a C-bounce to shield, which allows you to alleviate/avoid shield pressure and respond for a counter-attack, though it requires a frame-perfect shield input. This is also the first step to incorporating the INC, as the frame on which you shield is the frame on which you cancel your needles.
- While more situational than anything, the third variation mentioned above allows for an aerial B-reversal without any shift in momentum.
Other Fighters
While Sheik gets arguably the most from this tech, most other fighters can do it as well:









































The following can get something from the tech, but it does not behave normally:

Falcon Punch doesn't B-reverse.





These just act weird. Robin works normally in the air, but that's about it.



These simply use their Neutral Special attacks with no added effect.



These fighters can't do it at all.