| rowspan=3 | Increases bullet damage to 2 / 3 / 4. Bullets gain penetration, such that if a bullet destroys an enemy with damage left over, it will keep going until its damage is depleted, allowing at least two weak enemies to be killed with one bullet.
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| rowspan="3" | Increases bullet damage to 2 / 3 / 4. Bullets gain penetration, such that if a bullet destroys an enemy with damage left over, it will keep going until its damage is depleted, allowing at least two weak enemies to be killed with one bullet.