The dinosaurs of Terrible Lizards

The roster

Three species, each tied to one stretch of the game. They are ordered by how early you meet them, which is also roughly the order of how much trouble they cause.

Brontosaurus

The Titan · Chase and arena hunter · Levels 1–2

A sauropod rebuilt wrong: too long for the corridors it lives in, too heavy to outrun, and far too patient. It is the first monster you meet and the one that teaches you what the game wants from you.

Behaviour

• Long, deliberate searches. It sweeps a space slowly, which invites you to bolt early.
• Sudden charges once it commits. The gap between “searching” and “sprinting at you” is small.
• In the arena, it circles and lunges rather than chasing in a straight line.

How to survive it

• Move while it searches, sprint when it commits. Doing it the other way around is how people die.
• Break line of sight before you stop to press a button or grab an item.
• In the dynamite arena, the explosive is the answer; you are not meant to outrun that fight.

Allosaurus

The Hunter · Open-area patrols and ambushes · Level 3

The creature lead's favourite, and the only monster that actively plays with sightlines. It patrols a space you have to work in, which turns every objective into a risk calculation.

Behaviour

• Patrol loops rather than straight chases, so it appears where you were not looking.
• Ambushes from above and from side tunnels during the freight section.
• Keeps hunting after you break contact, which punishes doubling back.

How to survive it

• Listen before you move. The audio cue arrives before the model does.
• Work in a loop: grab one fuse, leave the area, come back from a different angle.
• Never commit to a fuse run you cannot abandon halfway.

Dilophosaurus Hybrid

Dennis · The face of the game · Late game

Part Dilophosaurus, part something with human hands, and the only creature that uses props. It wears a mascot costume to move around the attraction without being noticed, which is either clever or deeply upsetting.

Behaviour

• Wears a Paleo Pal suit, then drops it when the chase starts.
• Faster than the other two across short distances, and it cuts corners.
• Appears in spaces you have already cleared, including behind you.

How to survive it

• Treat any closed door as temporary. It does not respect cleared rooms.
• Save your cleanest route for the last third of a level rather than the first.
• The final sequence is scripted: keep momentum, do not stop to look at it.

How to survive all three

There is one rule that covers every encounter, and it is not a trick: keep moving, and read the route before the chase starts. Every other tactic is a special case of those two.

Brontosaurus

Move while it searches, sprint when it commits

Allosaurus

Listen, loop objectives, never double back

Hybrid

Never assume a cleared room is cleared

All three

No weapons. Terrain is the weapon

Why they look like that

The creatures were designed by principal creature designer RJ Palmer, with a small concept team, and roughly ten people took each one from concept to in-game model. The brief was deliberately not palaeo-accurate.

Because the game is set in 1992, the team pulled back thirty years of dinosaur science on purpose. These are the dinosaurs of a roadside attraction in 1992: scaly, upright, theatrical, and wrong in ways a modern player will notice instantly. That is the point. Dalton's Dinos built an attraction out of an outdated idea, and the monsters are what happens when that idea gets a body.

The Brontosaurus was the hardest to implement, according to the developer, because its length made roaming AI difficult to fit into playable spaces. Early builds had it floating, stretching its legs, and walking on its front legs only. The Allosaurus is the creature lead's favourite — “just cool and lethal” — and the Hybrid started life as a human–raptor concept before becoming a Dilophosaurus.

They are not real dinosaurs

This is the story's actual reveal, so consider it your spoiler warning: the creatures are not resurrected animals. They are organisms formed by the tar under the site, shaped from the fossils around them, which is why they resemble the skeletons in the museum rather than the animals those skeletons came from.

Practically, this explains the body horror. The Hybrid has human hands and a face where a face should not be. The Brontosaurus moves like something that has never had to fit through a door. The Allosaurus hunts with a patience that reads as intelligence rather than instinct.

The mascots are not monsters

Dalton's Dinos had five costumed Paleo Pals. Four of them are exactly what they appear to be — suits in a storage room, with talk boxes you can press. The fifth is the problem.

Dennis deserves his own page, because he is simultaneously a mascot, a costume, and the reason the game trended on social media. Read the Dennis file.