Spike Wall

The  is an obstacle found in the Spike Wall Stage. They can do lots of damage to the ship, and it only targets players; decoy ships do not fool it. The used to destroy seats (Making the player eject off) or glitch out boats, ruining runs. It is found only at the last stage and shares a place with the Giant Rock Stage and the Steampunk Stage.

Trivia

 * Damage dealt to a ship is rather random. The damage can range from destroying a couple of blocks to ripping an entire boat in half. Furthermore, it can tip boats over, so a roof is recommended.
 * The walls do not do any damage due to a bug in the game.