Brainiac must defeat any opponent with the final hit coming from Beta Strike

Develop a mutation.

Defeat Eredin.

Visit Tir ná Lia and convince Ge'els to betray Eredin.

Find Ciri.

Complete all witcher contracts.

Use the Axii Sign to force one opponent to kill another. Do this 20 times.

Make an opponent suffer from bleeding, poisoning and burning simultaneously. Do this 10 times.

Destroy all monster nests in the Velen / Novigrad region, or in Skellige.

Slide downhill uninterrupted for at least 10 seconds.

Discover 100 fast travel points.

Kill 50 opponents using the environment (e.g. swamp gas, insects or objects).

Attack, counter, cast a Sign and throw a bomb (in any order) in under 4 seconds.