Lizard Doggo

The Lizard Doggo is a short reptilian dog, red in color and about the height of an engineer's knees. It features 4 eyes, long ears, short legs, fish tail and scales on the back which resembles a carapace. It makes a bird-like sound. It cannot jump. It wanders around and will run away from engineers, but can be baited with a Paleberry. It is widely viewed as the game's mascot after its initial appearance in the teaser trailer, and was therefore the first thing ever revealed about the game, and the only thing until the E3 Reveal Trailer which feature the Lizard Doggo in addition to other features.

Behavior
The Lizard Doggo will normally run away from players, but if a Paleberry is dropped nearby, the lizard will eat it, and then if the player walks towards it and pets the lizard, it will be tamed. It will sticks its tongue out, make a sound, and its UI will be opened showing its inventory. After the UI is closed, the lizard will follow the player. Sprinting engineers will scare away nearby untamed Doggos, regardless if the Doggo had ate the berry. You can always pet it (default ) to check if the Lizard Doggo has found any item and stored in its inventory. It serves no other purpose other than generating random items (including Power Slug). Besides, it can occasionally find a small amount of ore, berries and nuts. It has a single inventory slot you can use if you don't mind making sure its pathing lets it keep up with you. They can be kept in a makeshift farm in order to gather items frequently.

For every non-fixed amount of time interval, one type of the following items can be randomly generated in the Lizard Doggo's inventory (This is not a complete list): A Lizard Doggo can sometime generate multiples of the same item during one re-generation cycle.

If carrying Uranium or Nuclear Waste, the engineer will receive radiation damage, but the Lizard Doggo won't. In addition, Nuclear Waste cannot be trashed which make it hard to get-rid of.

If killed, it will not drop any items.

The Lizard Doggo can forget that it has been tamed (it won't lose the items in its inventory and can be re-tamed). Lizard Doggos will try their best to follow their owner, if within their close range, and provided the owner does not jump more than 2 meters high in the air. Jumping while wearing Blade Runners will makes Doggos run away.

Hitpoints

 * Lizard Doggo can be killed by the player. Be aware when combating other hostile creatures with Lizard Doggo around.
 * Lizard Doggo can die from falling.

Multiplayer

 * In a multiplayer game, a Lizard Doggo has only 1 owner - the person who fed it the berry. Only the owner can open the lizard doggo's UI to see its inventory.
 * Ownership can be transferred by feeding a new berry from the other player. The previous owner no longer has the access to its inventory.

Current Issue

 * The Lizard Doggo's UI does not properly closed when clicking the 'X' button. To properly close it, press.
 * Sometimes when a Doggo is idling near a foundation edge it can fall off the edge by itself and die from height. Avoid keeping them at high places.

Media appearances

 * It occupies the entirety of the teaser trailer and can be seen attempting to eat a paleberry, while construction work can be heard and shadows and lights can be seen coming from behind the camera.
 * In the E3 Reveal Trailer it can briefly be seen riding a conveyor belt at 1:48.

Trivia

 * Lizard Doggo's name comes from the combination of its scaly appearance which suggests that it is some sort of reptile, but its behavior that is comparable to that of a domestic dog.
 * "Doggo" is an informal affectionate term for dog. It was initially used jokingly but made its way into the game itself.
 * The name "Lizard Doggo" was originally coined by YouTube commenter Chad Mojito.
 * The "Lizard Doggo" may even get its own plush in real life as said in Q&A #2.
 * Internally, it is reffered to as "Space Rabbit".
 * Lizard Doggos are supposed to be a cross of a rabbit and a shrimp that acts like a dog.