(This post contains spoilers.)

It’s been more than two decades since the release of the original Jurassic Park, but if you’ve seen it as many times as I have, you’ll notice that the new the entry in the franchise is packed with hidden Easter eggs and echoes of the original. (Plus some that aren’t so hidden.) Below, we’ve assembled a field guide to the many Jurassic Park callbacks in Jurassic World.

The Ian Malcolm (Jeff Goldblum) Easter egg

This Easter egg—teased with a fairly literal Easter egg hunt on this year’s Easter holiday—is so hard to spot that at first I almost thought that my eyes had deceived me. But Malcolm actually appears twice. The eccentric mathematician with the legendary chest first appears on the monorail on the kids’ way into the park, where he appears on the rear cover of the book that Zara (the assistant who babysits the kids) is reading. He appears again on the desk of Lowery (Jake Johnson) in the main control room.

Mr. DNA’s cameo

This cartoon mascot, who appears in the original film to explain the science behind creating the park’s attractions, can be spotted in the new movie on one of the touchscreens in the visitor’s center. While he was voiced in the original film by late voice actor Greg Burson, here he is voiced by Jurassic World director Colin Trevorrow.

The return of Dr. Wu (B.D. Wong)

B.D. Wong has a very small part in the first one, overseeing the hatch of a baby velociraptor:

In Jurassic World, he’s been promoted to head scientist:

The T. rex is the same T. rex seen in the first movie, scars and all

As director Colin Trevorrow has explained, “you’ll see that the scars that the raptors gave her at the end of the first movie are still on her now.”

Trevorrow has described the T. rex as the hero of the first movie, and in Jurassic World he has it come to save the day once again. In fact, Claire (Bryce Dallas Howard) draws it out with a flare:

This is the same method used by Alan Grant (Sam Neill) in Jurassic Park:

The statue of John Hammond

In the original movie, John Hammond (played by the late Richard Attenborough) is the CEO of InGen and the mastermind behind Jurassic Park. In the new movie he is mentioned in multiple scenes and a statue of him can be glimpsed in the visitor’s center. (The sculpture also bears a resemblance to the statue of Walt Disney at Disneyland—one of many parallels between Hammond and Disney.)

The dilophosaurus returns—and proves that raptors are still gullible

During the chase through the visitors’ center at the end of Jurassic World, Claire scares one of the raptors off with a hologram of a dilophosaurus. The dilophosaurus seems to be the same one that killed Dennis Nedry (the character played by Wayne Knight aka Newman) in Jurassic Park:

This evasion tactic is also similar to another smoke-and-mirrors stratagem used to evade a raptor in the first one:

The banner

The banner that older brother Zach (Nick Robinson) uses to make a torch is the same banner that fell in front of the T. rex at the end of the first movie

Various callbacks in the old park

These are more obvious, but the section of Jurassic World that takes place in the old park is filled with callbacks to the original movie.

We see the old Ford Explorers:

We see the night-vision goggles:

And of course we see the gate to the original park—though it’s seen better days:

And various action set-pieces also echo the first movie

For example, in Jurassic World, when the Indominus rex stomps the gyrosphere into the Earth while the kids are in it, it’s similar to the scene in Jurassic Park when the T. rex stomps the Ford Explorers into the mud when the kids are in it:

The chase with the raptors on the heels of the truck (with its back doors left open) is very similar to the chase with the T. rex on the heels of the Jeep (with the top off):

And the gallimimus run from the original movie:

Is given a reprise in the new movie—though it’s a lot less scary from the safety of a vehicle:

Correction, June 12, 2015: This post originally misspelled the name of Dr. Henry Wu.

Read more in Slate about Jurassic Park:

• Jurassic Park’s Best Special Effect: Laura Dern’s Mouth
• You’ll Never Guess How the Dinosaur Sounds in Jurassic Park Were Made
• How Michael Giacchino Creates a Masterpiece From the Original Jurassic Park Score