Up to 10 sims can participate on one lot. Requires 'haunted' objects which are marked with a tiny red ghost in the home-store.Unlocks: "Ghost Containment Tank".Pros: Every 3 taps when catching a ghost gives XPs/§s/LP.Cons: Tapping the ghost three times can be tricky on small screens. (Haunted items need to recharge (10-30 mins) as of the Teen Update!!).
The "Fashion Studio" can be bought from the "Promotions 'R US" for §2500 and placed at home (requires 2x2 squares). Unlocks: "Fashion Outfits" the first time, "Lucky Hat" the second time. (Use "Start a New Collection" to clear the grid and go for the next collection).Pros: can be done at home and by multiple sims at the same time, despite no returning rewards for already collected items, there is the bonus per light bulb.Cons: tapping game for getting the three lightbulbs can be frustrating on older phones/tablets due to lag. Already collected items do NOT yield rewards.
For Pre-Teens, Teens and Adults - Requires Swimming Pool (in town). Up to 4 sims can participate simultaneously.Unlocks: "Diving Boards" so you can practice at home too.Pros: none.Cons: Each collected dive is only rewarded when completing it for the first time, any subsequent identical dives get no XP and §, except for the action itself!
For Pre-Teens, Teens and Adults. Can be done at the "Snow Park" or at home on the pool, provided you've installed a weather machine and switched to 'Snow".Unlocks: "Key to Ski Lift" (at the Snow Park), the second time completing the collection unlocks "Figure Skating Outfit", after that "Town Value Booster" of § 50,000.Pros: noneCons: low rewards.