Ride onto an ice patch and flip onto your head!
Run over camouflauged (since everything's white) bumps and fly into parked cars!
Get snowblowed in the face!
Get marooned at work and have to spend the night in you office!**
Anything could happen!
Here's some pretty pictures:
I played the first couple levels of the Knucles version of Sonic the Hedgehog 2 for the first time in years. Getting chaos emeralds is a lot easier without Tails constantly bashing himself into things.
* Due to the prompness with which Madison gets its bike paths plowed, having an adventure requires at least part of your route to be off the bike path.
** Actually I planned for this, but I felt that it helped fill out the list.