Racing game Forza Motorsport 5 is not the only high-profile Xbox One game to receive a new expansion today. Microsoft today released the Morituri Pack for Xbox One launch title Ryse: Son of Rome, an $8 expansion (included with the game’s DLC pass) that introduces new content like more arenas.

The Morituri Pack features three new arenas for Ryse: Son of Rome’s Gladiator mode: Beacon, False Gods, and Revolution. Two new arenas for Survival mode–Sulfur River and The Forbidden Forest–are also included with the expansion. Five additional arenas “optimized” for the game’s Solo Mode are packed into the Morituri Pack for Ryse: Son of Rome. These are Market and Garden, as well as the aforesaid Beacon, Revolution, and False Gods maps.

Alongside the release of the Morituri Pack today, Microsoft reminded players that there are a total of nine Easter eggs hidden inside Ryse: Son of Rome–six in the campaign and three in Gladiator mode. So far, players have only discovered five, Microsoft said. To help you find the last four, Microsoft released step-by-step directions (below) explaining how to do so.

If you’re successful, you can record your discovery and send a OneDrive link to Xbox Live’s Major Nelson at major@xbox.com with “Ryse Easter Eggs” in the subject line. On Monday, June 2, Major Nelson will officially announce the locations of the remaining Easter eggs and include your name in the announcement if you were one of the first to find them.

1. In the campaign level “The Wrath of the Nemesis,” there’s a Scorpio in a tower that can be used to shoot many things. Enemies. Pillars. Statues. Firing a few volleys at them will reacquaint you with a familiar face, but not at all like you’re expecting.

2. Hurling a pilum in the water may seem like a waste of lethal weaponry, but if you happen to do it one time too many underneath a certain bridge in the campaign level “Pax Romana,” you will summon a surprise guest.

3. There’s a courthouse with an open roof in the campaign level “Pax Romana” where your pilum can arrange a shocking introduction. Get reckless with them and see what happens.

4. Good things come to those who wait in the campaign level “The Son of Rome.” Once you reach the courtyard, duck behind a curtain and hang out on the steps on the other side for a bit. Keep your eyes on the nearby balcony. Makes you wonder how they got up there, right?