Periodically, a snake, known as a Slitherin, will stick its head out of one of the holes in the pyramid. If a player is hit by the snake, that player will take damage. Before the Slitherin appears, its eyes will appear in the darkness of the opening that it will emerge from, providing the player with a warning. It also makes a characteristic sound when it emerges.
Slitherins cannot be destroyed with bombs.
1. Super Bomberman 3 Japanese manual, pg. 16
2. Super Bomberman 3 Hudson Soft Guidebook, pg. 35