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Johnny O. Rambo is a rare Researcher that boosts all bullet industries.


Unlocking him automatically multiplies bullets power by 2.


He can be unlocked at rank 12.

Johnny O. Rambo Boost Science Cost Cards Required
Level 1 X2 free 1
Level 2 X4 100 2
Level 3 X8 200 5
Level 4 X16 400 10
Level 5 X32 1,000 20
Level 6 X64 2,000 50
Level 7 X128 4,000 100
Level 8 X256 8,000 200
Level 9 X512 20,000 400
Level 10 X1.024 50,000 800
Level 11 X2,048 100,000 1,000
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