Yes, Raiden. Olimar is an alien. If you ever saw a tiny near-hairless creature with a large nose in the halls, that was also him.

"Our people had never seen this planet before. Most of our findings were sold back to Hocotate as rare, alien architects." Raiden seemed rather intrigued with the new knowledge he wasn't from this planet. "Oh, did you think I was a human? Ah, I could understand that. This is just a form I use for convenience. Hocotatians look much different," explained Olimar, using his hand to level around the height he would normally be.