Enter the Chamber of Gnomes.

Visit a friend's Backyard Battleground, or have a friend visit your Backyard Battleground.

Enter Infinity as a Plant.

Complete 'Yuck!'.

As a Goat, vanquish a Plant.

As a Plant, vanquish the Z7 Imp.

Complete 'Zero Bark Thirty'.

In solo ops, swap to another character.

Complete The Final Test unspotted. Kill only Jasper Knight, ensuring his body is not found.

Complete any Opportunity in The Final Test.

Complete Freeform Training in the Prologue.

Pacify any individual.