Geography
The area where you fight False Knight
Where is the Forgotten Crossroads?
The upgrade you get after defeating Hornet (Greenpath)
What is the Mothwing Cloak?
The boss you fight to gain access to Lurian the Watcher
What are the Watcher Knights?
The Hollow Knight's purpose
What is containing the infection?
The charm that shows your location on the map
What is the Wayward Compass?
The area where you find the White Lady
Where is the Queen's Gardens?
The only upgrade you find in the Ancient Basin
What are the Monarch Wings?
The final boss of "The Hollow Knight" ending
Who is the Hollow Knight?
The protagonist's birthplace
Where is the Abyss?
The charm found in Mantis Village that increases your nail size
What is the Mark of Pride?
The area where you find the Great Slash nail art
Where is Greenpath?
The upgrade you get after defeating the Soul Master
What is the Desolate Dive?
The only boss you'll find in the Crystal peak, not including it's re-fight
Who is the Crystal Guardian?
The Pale King's first form
What was a Wyrm?
The charm you find split into 2 shards
What is the Kingsoul?
The sub-zone at the bottom of Kingdom's Edge
Where is the Hive?
The only upgrade you find in the Howling Cliffs
What is the Cyclone Slash?
The warrior dream you fight in Greenpath
Who is No eyes?
The name of the starting poem
What is Elegy for Hallownest?
The charm that increases your I-frames
What is Stalwart Shell?
The sub-zone where you find the Descending Dark spell
Where is the Crystallized Mound?
What is World Sense?
The 2 fake-out fights in the game (characters that appear to be a boss fight, but are not)
Who are Tiso and the Hunter?
The reason why the Pale King's plan of containing the infection failed.
What was giving the vessel (Hollow Knight) emotion, causing it to not be fully hollow, thus giving the infection something to hold on to and spread? (Another similar answer is fine)
The charm that replaces Grimmchild after banishing the Grimm Troupe.
What is Carefree Melody?