Mermaids in The Sims 2 (PS2): Not Available—Here's Why

No. The Sims 2 on PS2 is a port of the base game only. It includes no expansion packs (University, Nightlife, Open for Business, Pets, Seasons, Bon Voyage, FreeTime, Apartment Life).

Mermaids were introduced in The Sims 3: Island Paradise (2013) and The Sims 4: Island Living (2019). They do not exist in any Sims 2 version.

The PS2 version also lacks: Create-a-Sim detail, Build/Buy depth, Aspirations, Wants/Fears panel, and cheat console (no testingcheatsenabled).