Assassin Creed Unity Reference...
	Other Ubisoft Games...
	The Headless Horseman...
	Various Trophies...

In the final glitched memory in the castle, there is a courtyard with two children. They will say their names are Arno and Elyse, which are the names of the main characters in Assassin's Creed Unity.

If you look around in the offices located near the Animus, you'll find various Ubisoft games displayed, such as FarCry and Splinter Cell.

Visit the town of Sleepy Hollow and look for the church. There, you should find the Headless Horseman, famous from his appearance in the classic short story by Washington Irving. He carries an ax, and is a lethal foe who won't die, but you can use a sleep grenade to put him to sleep.

Complete the following tasks to unlock PlayStation 3 trophy rewards.

Trophy	How to unlock
A worthy cause (Bronze)	Complete Present 3.
Achieve full synchronization (Silver)	Achieve 100% synchronization in all main missions.
Ancient Hero (Silver)	Get the Native Armor.
Brotherhood broken (Silver)	Complete sequence 6.
Camper (Bronze)	Loot 20 supply camps.
Capture all Gang HQs (Silver)	Capture all Gang HQs.
Cartographer (Bronze)	Visit every location in the game.
Dedicated Employee (Bronze)	Complete 35 Abstergo Challenges.
Defence First (Bronze)	Survive a Reverse-Boarding.
Denied (Bronze)	Counter 15 air surprise attacks.
Did I do that? (Bronze)	Complete Present 1.
Do not want (Bronze)	Counter 20 smoke bombs successfully using a gas mask.
For the Empire! (Silver)	Capture all forts.
Freedom fighter (Bronze)	Free 300 British Prisoners of War.
Globe Trotter (Bronze)	Complete 17 story missions in the Naval Campaign.
Halcyon days (Bronze)	Complete sequence 1.
He's not dead, is he? (Bronze)	Complete Present 2.
Hunt the hunted (Bronze)	Sink 10 ships in North Atlantic without dying while only the HUNTED cheat is active.
I ENDURE (Bronze)	Sink 10 ships in North Atlantic without dying while only the ENDURANCE cheat is active.
I'll take that (Bronze)	Capture all settlements.
Ice Breaker (Bronze)	Break through 500 meters of Ice Sheets.
Instant Vikings (Bronze)	Hit 5 enemies with a berserk grenade at the same time.
Killing Machine (Silver)	Kill 30 guards without dying while only the ENDURANCE cheat is active.
King of the Hill (Silver)	Complete all Native hills and Ice Caves.
Knight of Yore (Silver)	Get the Templar Armor.
Making new friends (Bronze)	Complete sequence 3.
Master of the North Atlantic (Gold)	All legendary battles completed.
Memory collector (Bronze)	Collect all animus fragments.
Nap time (Bronze)	Put 5 enemies to sleep with a sleep grenade at the same time.
Ninja (Bronze)	Complete an Outpost without getting detected.
No page unturned (Silver)	Complete the final glitched memory.
One legend dies, and one is born (Silver)	Complete sequence 5.
Owned (Bronze)	Complete every activity in a single location.
Phantom Queen (Silver)	Fully Upgrade the Morrigan.
Picking teams (Silver)	Complete sequence 4.
Platinum Trophy (Platinum)	Unlock all other trophies.
Property Tycoon (Bronze)	Complete all renovations.
Repairman (Bronze)	Repair all computers in Abstergo Entertainment.
Sending a message (Bronze)	Complete Present 4.
Smashing (Bronze)	Destroy 100 Ice bergs.
Stalker killer (Bronze)	Counter-Kill 30 Stalkers.
Supplier (Silver)	Take over 10 large supply camps while only the VETERANS cheat is active.
Templar then; Templar now (Gold)	Complete the game.
The end of youth (Bronze)	Complete sequence 2.
This war of mine (Silver)	Complete all assassin interceptions.
Unicorn Slayer (Bronze)	Harpoon a Narwhal.
What's yours is mine (Bronze)	Loot 20 ship convoys.