My cool and weird facts:
-New Age music from The Sims 2 Seasons have The Sims 1 building mode music. (And Shopping music is from The Sims 1 Buy mode)
-Sim can die by flies.
-Sim will start shaking when they drink too much coffee.
-Sims can get Restaurant coupon from great outing (date), that involves eating in restaurant.
-There's two moons in the sky.
-Elders have different animation when teaching toddler to walk.
-In apartment, neighbours make more noise, is your sim share bad relationship with them.
-When sim is deleted with moveobjects cheat, then if you save and come back there, that sim should be standing near mailbox.
-Grim Reaper have skull on his cell phone. Cell phones from University have freezer bunny on it.
-When elder retire and get a new part-time job, then they still receive pension. But if elder dies and is brought back to life, sim will resume getting pension.
And many more.