There are still a bunch of undiscovered secrets and easter eggs in Halo 4, says developer 343 Industries.

Writing on Halo: Waypoint, Lead Campaign Designer Jesse Snyder said, “The Halo 4 Campaign still contains many secrets left uncovered.” 

“Hidden in various missions by our venerable mission designers, easter eggs have been lying dormant, ticking clocks simply waiting for a pair of eyes outside of 343 to see them. Eyes that could be yours.

He continued, “Discovering that, in fact, many were still hidden, we were relieved. Avid secret hunters claimed that some of our treasures would be found within days of launching the game. ‘Certainly, they’ll find them any day now,’ we thought. Time would prove both us the aforementioned secret hunters wrong.

“Act quickly and maybe you’ll find an easter egg on your own, but that time is about to pass. We’ve decided to give you some hints to help you uncover our secrets, without telling you where they are outright. 

“Additionally, we’ll be giving you more hints in future Bulletins. Knowing how well we’ve hidden our easter eggs, it only seems fair. Even though this may sound cliché, ‘If at first you don’t succeed, try, try, again.’ Never stop searching. Some secrets might be right in front of you.”

The tease came as part of the latest Halo Bulletin, which contains info on next week’s Playlist Update. Check it out in full here.