Climb

Climb is an ability used in the Sonic franchise, primarily by Knuckles the Echidna. Debuting in Sonic & Knuckles, Knuckles has since used it in several other games, and has also been used by Tikal, Chaos, and most notably, Rouge.

Description
To perform Climb, the user must first Glide towards a scalable wall. Once the user touches it, he/she wil place their fists into the wall, making a stable bond and will begin to scale it.

The technique was introduced in Sonic & Knuckles. The technique allowed Knuckles to reach areas which were inaccesible to Sonic. It could be easily used in conjunction with the Glide technique, and at the time, Knuckles was the only user of Climb.

In Sonic Adventure, Knuckles could once again perform Climb, making it the first appearance in a 3D, free-roaming environment. At this stage, Knuckles was still the only character able to use Climb. Later, in Sonic Adventure 2, the technique was learned by Rouge the Bat, who could use it in treasure hunting stages in the same method as Knuckles. Tikal and Chaos could also use the same Climb technique in the multiplayer modes.

In the Sonic Advance series, Knuckles was once again the only character able to use Climb. It was used in much the same manner as in Sonic & Knuckles.

In Sonic the Hedgehog (2006), Knuckles and Rouge could again perform Climb. Climb was used in Sonic '06 in a very similar way as in the Sonic Adventure series, though much smoother, and also that neither Rouge nor Knuckles could Dig will climbing.

In Sonic Chronicles: The Dark Brotherhood, Knuckles and Rouge could both perform Climb outside of battle. The Climb ability was marked by a ladder symbol, and was needed to reach high and otherwise inaccesible areas.