The difficulty on this is pretty extreme - I wonder if anyone here has gotten past the first section with the boat spawning the reindeer men? Very strange, you really nailed the theme. I'm impressed you got the 3D game running this well in the browser!
Not sure if this is a bug or unlucky, but the first few 2 or 3 ties I tried, I didn't get any health drops. That started happening as I kept playing, and got me farther, but still was not able to fight my way through and escape before being mobbed