Cash-Back is a new persistent upgrade, much like going prone in front of the Perk Machines in Der Riese to receive twenty five points, The Cash-Back persistent upgrade is gained by buying a perk, then instantly going prone in front of the machine after you finish drinking the cola, this must be done 5-20 times. Somewhere between five and twenty drinks, the perk will be unlocked, the green mist of getting every other persistent upgrade will show. This perks effect is that every time you buy a perk, you will instantly receive one thousand points, no matter what perk, this perk can be lost by not going prone in front of the machine after drinking it.

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