How do you revive everyone?
For the solo Ragdoll Engine by Ragdoll Co, the developer provides one explicit revival instruction: R revives everyone. This is the documented key to use when you want that action. Injury behavior around that reset is covered in the wounds and bleeding guide.
The listing does not explain whether revival also repairs broken bones, removes wounds, changes zombie states, or clears anything from the scene. Do not treat R as a confirmed full-scene reset.
What can the Taser do?
The official description mentions tasering dummies alongside restarting hearts and raising a zombie. It does not provide a Taser button sequence, an aiming requirement, a range, or a list of its effects.
Those adjacent phrases confirm that the features are mentioned, but do not establish that they all use the same tool. In particular, a claim that the Taser restarts hearts or creates zombies goes beyond the reviewed source.
Use the official page to identify the correct experience and check for new instructions. Any more detailed control walkthrough should be verified in this game before being treated as reliable.