VIDEOS:
Asura
Asura is a gigantic three-armed robot that generates force-fields and lasers. In order to defeat it, Sonic has to boost upwards and attack its three spires. (Or he could just wall-walk on it by chance)
Example of:
Colossus Climb
An Unfortunate Jumping Point
Example of:
Bare-Bottomed Monkey
Climbing the First Colossus
Example of:
Colossus Climb
"Getting Close to Carmelita"
Example of:
Colossus Climb