How do you resurrect in the Sims 2?

you pour koolaid in your hard drive... free rez mmk

If you have S2 University, you can use the cheat UnlockCareerRewards and go to the Career Rewards section bag and place the Resurrect-O-Nomitron on your lot, and another household member can call the Grim Reaper and bring him/her back to life for a price... if you don't pay him a lot of money, your Sim will be a Zombie, and lose most of their skills/personality, but if you pay him over $8300, your Sim will come back to life completely normal.