Spikes are hazards in Gravity Duck. They are first seen in level 4.
Spikes have a brown base with a silver tip. The base is attached to the surface of where the spike is present at, and holes may be seen, altering its shape. The tip of the spike is round at the sides and pointed at the top. A gap is seen between a pair of spikes.
Spikes appear in groups and may line the walls, ground or ceiling of a level in the game. They remain stationary throughout their appearance in the game.
When the duck makes contact with a spike or pair of spikes, it will instantly die. A "pop" sound is heard and the level instantly restarts from the duck's original start point.