The Three Main Monsters Confirmed by the Developer

Terrible Lizards centers its main monster lineup on Brontosaurus, Allosaurus, and a Dilophosaurus-human hybrid. Those are the three creatures identified in the developer's October 2026 Q&A. Knowing that lineup helps separate the main pursuing monsters from the attraction's fossil displays and colorful mascot characters.

The official October developer Q&A explains both the dinosaur choices and an important change to the hybrid's design. This guide covers that confirmed main trio; it does not present every display animal, background creature, or mascot as an additional main enemy.

Brontosaurus and Allosaurus

Brontosaurus is the enormous member of the trio. The developer identifies it as the hardest creature to implement because its size and length made roaming AI difficult to fit into playable spaces. That is a development explanation for the scale of the monster, rather than a promise about a particular safe distance or escape tactic.

Allosaurus supplies another recognizable Jurassic dinosaur to the lineup. The Q&A says the team settled on the core trio fairly early and wanted animals that fit the broad era and setting they had chosen.

The developer also qualifies that choice: the game is not intended as a highly exact recreation of the dinosaur record in New Mexico. Its creature selection aims for a coherent setting and memorable designs. Real-world dinosaur names are therefore useful identifiers, but they should not be treated as a complete guide to the behavior of these horror creatures.

Why the Hybrid Uses Dilophosaurus

The third main monster began as a different idea. The developer says it was originally closer to a human-raptor hybrid, then changed toward a Dilophosaurus-human hybrid.

That choice gave the character a distinctive silhouette, especially its crest. The Q&A also says that a Jurassic-era raptor did not feel iconic or intimidating enough for the intended role. Dilophosaurus lived earlier than Brontosaurus and Allosaurus, a difference the developer explicitly acknowledges while explaining why it still suited the game.

The hybrid should therefore not be reduced to a conventional raptor simply because that was an earlier design direction. Use the final, officially described Dilophosaurus-human basis when identifying the main monster.

Monsters, Mascots, and Museum Displays

Dalton's Dinos contains more dinosaur imagery than the three main creature names alone suggest. Its identity includes fossils, exhibits, and the Paleo Pals. The Q&A separately mentions mascot characters such as Benji, Alistair, Stephanie, and Dennis.

Those categories serve different purposes. A dinosaur pictured in an educational exhibit is not automatically another main roaming threat, and a mascot's name does not by itself establish a one-to-one mapping to every monster. For a reliable list, keep the developer's main trio as the starting point and identify individual encounters through their actual dialogue and objectives.

Confirmed main creatureDetail established in the developer Q&A
BrontosaurusIts huge scale made roaming AI difficult to implement
AllosaurusPart of the main trio chosen early in development
Dilophosaurus-human hybridReplaced an earlier human-raptor direction; the crest helps its silhouette

FAQ

What are the main dinosaurs and monsters in Terrible Lizards?

The developer names Brontosaurus, Allosaurus, and a Dilophosaurus-human hybrid as the main trio.

Is the hybrid a raptor?

The original concept leaned toward a human-raptor hybrid, but the developer says the design changed toward a Dilophosaurus-human hybrid.

Is every dinosaur display a main enemy?

The official trio does not establish that. Dalton's Dinos also contains educational displays, fossils, and mascot imagery.

Why is Brontosaurus so important to the lineup?

Its scale is central to its design. The developer describes it as especially challenging to implement as roaming AI because it is so large and long.