Here is the full list of all 5000 Panda Run achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
You are Polar bear!
You are European brown bear!
You are Grizzly polar bear hybrid!
You are Ursid hybrid!
You are Himalayan brown bear!
You are Marsican brown bear!
You are Grizzly bear!
You are Asian black bear!
You are Giant panda!
You are Glacier bear!
You are Formosan black bear!
You are East Siberian brown bear!
You are Sloth bear!
You are Atlas bear!
You are Cinnamon bear!
You are Syrian brown bear!
You are Sun bear!
You are Ussuri brown bear!
You are Sri Lankan sloth bear!
You are Blue bear!
You are Kermode bear or Spirit bear!
You are Baluchistan bear or Pakistan black bear!
You are Gobi bear!
You are Eurasian brown bear!
You are Kamchatka brown bear!
You are Mexican grizzly bear!
You are Speckled bear!
You are Brown bear!
You are Kodiak bear!
You are Louisiana black bear!
You are American black bear!
You are Bergman's bear!