Climb
Climb is a custom sub game-mode. The goal is to climb up to the flag and capture it! Some maps are equipped with deadly polygons, obstacles, bouncy polygons, teleports. This mode requires a fine ability in control of the movement system. One may need to learn many trick jumps, and the right timing for every movement. The climb game mode includes also co-operative climbs where teamwork is required to ascend to the top.
Tip: A good place to start in what's called a "save" climb server, which allows one to set a last location as a checkpoint. That way one wouldn't have to go all the way to the beginning of the map.