A Proximity Bomb(Prox Mine) is a bomb found in Resident Evil 5, which is hooked up to a pressure pad and releases the explosive charge when somebody goes within range of the blast. When a Majini or another enemy steps on it, it releases a large explosion that does 1,500 damage in a direct hit, and 1,000 damage to surrounding enemies. It can be found in many different boxes and barrels, and can be purchased anytime after Chapter 2-2.
For gameplay reasons, the player can walk over it and remain unscathed. Also, if it hasn't detonatetd, the player can pick it up again.