
Season 4’s Snow Plow Sweeper (with regular sweeper arms)

Season 4’s Snow Plow Sweeper (with crushers)
The Snow Plow Sweeper is an obstacle, used as the third obstacle in the Qualifier of Season 4's Winter Wipeout, replacing the Trampoline Sweeper, the Shake-a-lator, the Organ Grinder, and the Beaten Path from the previous season.
Contestants must run across a semicircular array of pedestals to the other side without being knocked off by two regular sweeper arms or crushers and two gyrating sweeper arms (similar to the Gyro Sweeper (which was used as the second round in Season 2, being interchanged with King of the Mountain)) spinning towards them. As a side note, the sweeper machine is similar to the planks used on the Double Cross (which was used as the second round in Season 3, being interchanged with the Overdrive). Starting in the second episode, the entire sweeper machine spins from behind them.

Season 4’s Snowman Sweeper
In the fourth and fifth episodes, it was renamed the Snowman Sweeper, replacing two of the sweeper arms with snowman heads.

Season 4’s Polar Bear Express
In the seventh and eighth episodes, it was renamed the Polar Bear Express, replacing the snowman heads with polar bear heads.
Only six contestants cleared this obstacle with two of them from the same episode:
- Jason Ondo (S4E2)
- Dana Logsdon (S4E4)
- Edward Monroy (S4E6)
- Anthony Traficante (S4E7)
- Larry Lane (S4E8)
- Gary Lane (S4E8)
Coincidentally, five of them later went on to win their respective episodes.
It was replaced by the Spring Fling when the season moved on to Spring Wipeout.