The Proximity Pinball is a proximity-detonated grenade with a unique method of operation: it uses small chemical thrusters to bounce around before detonating. Evidently created by a small manufacturer in the Terminus Systems, the grenade's primary purpose is to flush enemies out of bunkers while causing maximum damage; although not as outright destructive as other types of explosive, the blast is sufficient to pose a lethal threat to any opponent short of a krogan, and the unpredictability of its path makes it extremely difficult to counteract.

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