VMware Player does not have the snapshot capability which allows to go back to a previous state. Snapshot feature is available on Workstation Pro.
So the next best thing would be to have a copy of the VM in another folder before powering up. You would then copy back again (and answer "I moved it" on the next power up of the VM, so that the unique IDs of the VM does not change) the next time you would go to the previous state.
If you also want to preserve time state (i.e. start the VM on a specific date/time everytime you start the VM), there are VMX entries for it.