The Wipeout Wall is an obstacle in the 4th season that is used of Wipeout's first summer episode "Summer Sneak Peak". It shares two obstacles used in Season 3 of Wipeout.
1st Half: The first half is a variation of the Smack Wall Sweeper obstacle. There are 4 Sweeper Arms; and as contestants avoid the sweeper arms, the letter P attempts to hit them in the face and knock them into the mud pit.
2nd Half: When contestants try to get past the U, its purpose is reminiscent to the Fence Flappers when it is fired.