• Adds an 8.5% chance to fire bullets that explode upon hitting an enemy or object. The explosions deal 25 damage.
• This effect can only be triggered a maximum of once per second, making it seem like slower fire rate weapons have a higher chance.
• Gives beam style Guns an 8.5% chance every second while firing to gain double damage for one second, creating random seconds of double damage.

• Air Support - If the player has [Air Strike] , it will cover a massive area when used.
• Cerebral Bros - Upgrades the [Bullet Bore] to fire 2 drills.
• Reactive - Makes [Lower Case r] spell out ROCKET, BOOM, KABOOM, and POW when fired, and its shots explode.
• Shot Across The Bow - If the player has [Gunbow] , it fires explosive missiles.
• The explosions do not harm the player.
• Explosions can show secret room cracks when using starter guns.
• The beam damage multiplier sometimes granted by Explosive Rounds does not stack with the beam damage multipliers of [Shock Rounds] , [Flak Bullets] , [Katana Bullets] , [Shadow Bullets] , [Vorpal Bullets] , [Blank Bullets] , [Devolver Rounds] or [Hungry Bullets] . While the damage multiplier itself does not stack, the chance for the multiplier to be applied per-second does.
• If combined with [Angry Bullets] , explosive projectiles won't explode when hitting enemies and will just bounce off of them.
• If used with a shotgun, each pellet has a chance to explode. Since the explosion damage is fixed, this massively increases the power of shotguns.
• Explosions can destroy otherwise permanent fixtures to the wall, such as shelving in the mines.
• If the [Alien Engine] explodes using this round, it leaves a small area of fire.
• If combined with [Irradiated Lead] , [Hot Lead] , or [Frost Bullets ] , explosions have a chance to leave a puddle of their respective element.
• Sometimes explosions from the item will not function properly if there is a large quantity of the player's bullets on screen. However, the game will attempt to load every potential explosion missed, even if the player is already several rooms away.

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