The Ultimate Sonic Frontiers Egg Memo Guide: Count, Secrets, Rewards, and Future Content

Sonic Frontiers hides 71 Egg Memos across its six main islands, the hidden Void Zone, and several secret outposts unlocked after the main story. The distribution is uneven: Island 1 hosts 12, Island 2 only 8, while the sprawling Void Zone contains 15. A spreadsheet‑style checklist is the most reliable way to track progress; many players use the in‑game map’s “Memos” filter, which lights up a tiny icon when a memo is nearby. The game’s UI doesn’t display a total count, so external resources or the official Sonic Wiki become essential for a full inventory.

To avoid missing any, start each island at the highest point and spiral downward, checking every cliffside, underwater tunnel, and hidden cave. Some memos sit behind puzzle doors that require a specific Chaos Emerald to open, so make sure you’ve collected the requisite emerald before tackling those sections. By methodically sweeping each region, you’ll hit the 71‑memo target without endless back‑tracking.

Each memo acts like a page ripped from an ancient journal, written by the long‑lost inhabitants of the Starfall Islands. They explain the rise and fall of the “Ancient Civilization,” their experiments with Chaos Energy, and why the planet itself is a living conduit for Sonic’s speed. For example, Memo 27 describes the “Great Cataclysm” that shattered the islands, tying directly into the cinematic where the planet cracks open during the final boss fight.

Beyond world‑building, the memos drop subtle hints about Sonic’s own role. Memo 42 mentions a “blue blur destined to awaken the planet’s heart,” which many fans interpret as foreshadowing Sonic’s ability to harness the planet’s power later in the game. These narrative breadcrumbs reward players who care about lore, turning a simple collection task into a deeper storytelling experience.

Finishing the entire Egg Memo set grants access to the “Chronicle Gallery” in the main menu. This gallery compiles every memo text, concept art, and a short voice‑over from the writers, effectively giving you a behind‑the‑scenes look at the game’s development. In addition, a unique “Chronicle Sonic” skin unlocks, swapping the standard blue look for a sleek, silver‑trimmed outfit adorned with ancient glyphs.

There’s no monetary in‑game currency or XP boost tied to memos, but the sense of accomplishment is palpable. The gallery also includes a hidden “Developer Commentary” track that plays while you browse, offering insights you won’t find elsewhere. For speedrunners, the memo completion badge appears on the player profile, signaling mastery of the world to the community.

Egg Memos are strictly a single‑player collectible. The game’s save file records which memos you’ve read, and there’s no built‑in way to export that data or share it with friends. Even in co‑op modes, the second player can see the memo’s text but cannot claim it for their own collection. This design choice keeps the narrative experience personal, ensuring each player discovers the story at their own pace.

However, players often share screenshots or transcribe memo content on forums, creating community‑driven databases. If you’re playing on a shared console, you can manually transfer the save file, but the memo progress remains tied to the original profile. The lack of direct sharing doesn’t diminish the fun; it simply encourages discussion outside the game.

From a mechanics standpoint, Egg Memos are passive. Collecting one doesn’t unlock new abilities, alter enemy behavior, or modify level geometry. Their impact is purely informational and cosmetic. That said, many memos point out hidden pathways or puzzle solutions that can make traversal easier. For instance, Memo 58 reveals a hidden lift that bypasses a particularly tough combat arena, indirectly smoothing the difficulty curve.

The indirect influence is where the real value lies. By reading a memo about a dormant energy node, you might decide to revisit that area later with a specific upgrade, turning a simple lore snippet into a strategic decision. So while the game doesn’t force you to adapt your playstyle, the information can subtly reshape your approach.

Egg Memos become available at different stages. The majority appear right after you unlock an island, but a handful—especially those tied to the Void Zone—only appear after you defeat the main antagonist and trigger the “Endless Exploration” mode. This post‑completion phase opens previously sealed doors and adds new environmental hazards that, once cleared, reveal the final memos.

If you’re aiming for a 100% run, it’s wise to postpone exhaustive memo hunting until after the main storyline. That way you won’t waste time revisiting islands you’ve already cleared. Conversely, if you enjoy piecemeal exploration, you can collect as you go, using the map’s memo icons to guide you. Either approach works; the game simply doesn’t lock any memo behind a time‑gate.

The memos act as the connective tissue between open‑world exploration and narrative progression. While Sonic’s speed and combat dominate the core loop, the memos encourage players to slow down, scan the horizon, and engage with the environment’s history. This duality mirrors the game’s design philosophy: blend high‑octane action with contemplative world‑building.

Moreover, the memos reinforce the theme of “awakening.” Each fragment you collect nudges Sonic—and the player—closer to understanding why the planet reacts to his presence. The final memo, unlocked after completing all others, explicitly states that Sonic’s bond with the planet will shape future DLC, tying the collectible system directly to the franchise’s roadmap.

No. The main storyline, boss battles, and ending cutscene are all accessible without a single memo. The game’s progression gates rely on Chaos Emeralds, not narrative fragments. That said, skipping memos means missing out on world lore, the special skin, and the Chronicle Gallery. If you’re purely interested in speedrunning or finishing the plot quickly, you can ignore them entirely.

For completionists, however, the memos are the final piece of the puzzle. The achievement “Egg Memo Master” only triggers when you’ve logged all 71 entries, and the associated trophy is one of the most coveted among Sonic fans. So while not mandatory, they’re essential for a truly comprehensive playthrough.

Once you’ve read a memo, the game marks it as “viewed” and removes the glowing icon from the map. The text stays accessible in the “Collected Memos” log, which you can open at any time from the pause menu. This log includes a thumbnail of the memo’s location, making it easy to revisit the context without physically traveling back.

If you start a new save file, the memos reset, allowing you to experience the discovery anew. Some players create “New Game+” runs where they purposely skip memos on the first playthrough to savor the surprise later. The persistence of the log ensures that even if you forget a memo’s content, you can always look it up, preserving the narrative for future reference.

Sega has hinted that upcoming DLC packs will expand the Starfall Islands with new zones, each containing fresh Egg Memos that continue the ancient civilization’s storyline. Early trailers show a “Crystal Cavern” area with a distinct visual style, and developers confirmed that at least five new memos will accompany it.

Beyond DLC, the studio plans seasonal events that temporarily spawn “Golden Egg Memos” offering exclusive skins and a limited‑time lore snippet about Sonic’s allies. These events won’t affect the base 71‑memo count but will add a layer of collectible urgency for players who enjoy chasing time‑bound content. Keep an eye on official patch notes, as each major update tends to include a memo‑related teaser.