GURPSよろず

　Many creatures --realistic and fantastic--climb as fast as they walk.
Brachiators often move faster while climbing. Explanations include strong hands and arms (which might explain Arm ST or 「追加攻撃体力」), built-in climbing spikes (which could double as 「爪」), and superhuman powers of adhesion or gravity control.
The meaning of “+1 Move when climbing” is clear for 「壁にはりつく」, with its climbing speed of half 基本移動力.
For conventional climbing, though, the table under 登攀 (p. B349) doesn’t give Move in yards/second.
Assume that each level of 「超登攀」 raises climbing speed by the base value on the table. For instance, 「超登攀」 4 gives +12 rungs/second to climb up a ladder in combat, +80 ft/min to climb up a rope out of combat, and so on. Realistically, gravity limits rappelling speed (“ropedown w/equipment”), which shouldn’t benefit from this advantage.

■代替案（Alternatives）
　「超登攀」 enables speedy conventional climbing. To climb like a spider or gecko, take 「壁にはりつく」 (p. 45).
A robot or vehicle with a built-in line and grapnel, or similar gear useful with the 登攀 skill, has an 「[付属品]]」 perk (p. B100).

■追加特別限定（New Special Limitation）s
　Take Specific (p. 112) if your Move bonus only applies when climbing certain kinds of surfaces. Common materials, such as metal, rock, or wood, are -40%; ferrous metals are -50%; and uncommon materials, such as adobe, ice, or rubber, are -60%.

Requires Low Gravity:
　Your ability doesn’t function in gravity fields over a certain, maximum strength. -5% per 0.1G under 1G (-5% for 0.9G, -10% for 0.8G, and so on --down to -50% for 0G).

■パワーアップ（Powering Up）　P79P
　When 「超登攀」 involves force control, it’s appropriate for 「サイコキネシス」 and elemental powers such as Gravity and Magnetism.

If it works by granting incredible balance or a strong grip, it’s suitable for body-control powers --especially the chi powers of cinematic ninja.

「形態変更」 and animal-control powers might even let the user take on ape-like features in order to climb well. 才能 adds to all DX, ST, and 登攀 rolls made to climb.