A fun game! The theme of commuting to the office is amusing, and collecting muffins for energy was a fun idea! I liked being able to slide forward (by pressing the down key), as it was a quick way to get across roads. Overall the controls were very easy to use.
One thing I found is that sometimes, even though it didn't look like the car hit me, I would fail anyway, which was a little confusing.
Altogether a great submission and I had fun playing! :)