Golden Syrian hamster with white belly, lost near Western Slope

Hi, I lost my pet hamster yesterday around 3pm after I was cleaning the living room and the cage door slipped. It's a small tan-gold Syrian hamster, about the size of a ping-pong ball, with a white belly and a faint white stripe along the back. I’ve had him since he was a rescue, so he means a lot to my daughter and me. He was last seen near the City Park on Riverside Avenue in Western Slope, and he can squeeze into tiny gaps, so please check garages and bushes nearby. He also has a tiny blue dot on his left shoulder for identification.