Spike Trap do damage to living character on contact. A corpse on spikes can used as a platform. Its default spawn probability is 40%. It can be destroyed by either gunfire or explosion that wrecks terrain under.
Mine Field explode shortly after something walks on it. It can also be destroyed by shooting it or throwing someone at it. Its default spawn probability is 40%. Death can be avoided by quickly jumping off the triggered mine.
Saw Blade can rotate clockwise or counter-clockwise. They're either present hanging mid-air or are shot from a specific trap. After being damaged or shot by a trap they fall and advance respectively to the right or the left of the screen. Moving saw blades can jump and damage terrain. Moving saw blade can also be destroyed by shooting it, otherwise it dissipates shortly after.