This is a Chris only trophy and can be obtained in two separate places. However you only need to do one to earn it.
- The first time is when you first encounter Yawn in the attic. If Yawn bites Chris he’ll be poisoned and fall down after finishing the fight and leaving the room. Rebecca will find Chris poisoned and will have to go get Serum to save his life. Just like with Richard, this is a timed event, so she has to be fast. Make it back to Chris in time to save him with the Serum, and you’ll earn this trophy.
- The second place to save Chris is during the Plant 42 fight in the Residence. This event is only possible if Chris did NOT save Richard's life with the Serum. If so Plant 42 will grab Chris to drain his life. Rebecca will then have to create the V-Jolt and administer it to Plant 42’s roots which are down in the Shark Tank area. Once Plant 42 is dead and drops Chris the trophy should pop.
How to make the V-Jolt
*** Spoiler - click to reveal ***In the Residence Chemistry room you have 4 glass containers (you only need 3) as well as 3 resources to use; Water, Red, and Yellow. You also have a math equation scribbled on the wall; to understand this, know that each resource is represented by a number.
Water = 1, Red = 3, Yellow = 6
1+3 = 4 Mix one water and one red to make 4.
4+6 = 10 Mix that 4 with one yellow to make 10.
1+6 = 7 Mix one water and one yellow to make 7.
10+7 = 17 Mix 10 with 7 to make 17.
17+3 = 20 Mix 17 with one red to make 20, which is your V-Jolt.