Ahh, that reminds me of another one where one was (more or less) steering a stick man on a sled. More precisely, one would create custom slopes for him, which he would then follow automatically after hitting "Play". The goal was to prevent him from falling or crashing.

There was even a YouTube video of a guy who must have spent hours creating slopes, which the stick man would then follow to the precise melody of some classical piece of music. Truly epic.

Does anyone remember the name?

UPDATE: Line rider! https://www.youtube.com/watch?v=vcBn04IyELc

Was it one of the Yetisports games? Snowboard Freeride?

Oh wow, Yetisports! I haven't heard that name in at least 10 years!

Speaking of very popular and very well-made flash games with winter/Christmas setting, this reminds me of Orisinal Winterbells[0]. I still can't believe how many hours I spent playing that game.

[0]: https://ferryhalim.com/orisinal/g3/bells.htm

That wasn’t the one I was thinking of, sadly. The graphics were even worse.

SkiFree https://ski.ihoc.net/

Also https://archive.org/details/win3_SKIFREE

Interesting, but it was native Flash and second-person perspective.

What is "second person perspective"?

It’s when the camera closely follows the back of the protagonist.

Oh man, this takes me back.