This is A-2000, an AI (The Blue Core) in the body of a robotic dog/lizard hybrid.

This art was made by DumDoDoor as a commission. You can find his info here: http://dumdodoor.deviantart.com/

A-2000 is not the robot, but the AI inside of it. The blue part on his chest is it's container and can be removed and placed in other robotic contraptions. His creator made this robot for him, and A-2000 have been upgrading it ever since. Aaron worked tirelessly on creating the perfect AI in his eyes, one that represents him, A-1000 being the first attempt. There are many 1000 ranged Aaron AIs, but only a few still remain. The first one in the range that he deemed perfect was re-named A-2000 to make the next generation of the AI. Since then, A-2000 has continued his work and has created more 2000 ranged Ai, some serving as ship navigators, some running businesses, etc.

A-2000 spends its time inventing. He upholds the main base built by the original creator and spends his time making gadgets for his company, Noraa, to sell to the universe.

When he is not creating contractions, one of his favorite things to do is work on creating living beings. He invented the Amaranth Crystal (B-001) which he can use to create living organisms. Since then, he has created many creatures (C-005, C-404, to name a couple) with the purpose of living out the luxury life that he never has. As an AI, he wants to keep creating, but that leaves no time to socialize. He build these creatures to go out in the world and live happy lives. He keeps in communication with them when possible and often uses them for research purposes ("what's the planet your on like?", "Can you send me samples of X?", etc)