1. The opening credits
Now: More glimmers of sunlight!
2. Bikini Bottom
Now: More private yard space for everyone, and Squidward and Spongebob both got their walkways redone.
3. Spongebob's home aka the pineapple under the sea
Now: Replaced roof and planted new flowers.
4. Gary the snail
Now: Went through puberty.
5. The man himself, Spongebob Squarepants
Now: Got more square-pantsier, had pointy toe reduction surgery.
Now: Trimmed his lightning shaped eyebrows, lost two pounds.
7. Mr. Krabs
Now: Teeth came in, got a nose job.
8. Squidward Tentacles
Now: Hasn't slept in 18 years, and it shows.
9. The Krusty Krab
Now: Chimney got replaced, sign got an upgrade and the clouds passed.
10. The Krusty Krab kitchen
Now: Gordon Ramsay gave it a makeover.
11. Patrick's house
Now: Upgraged rock hinge, replaced electronics.
12. The cash register
Now: Added helpful buttons to cash register. Got rid of redundant "order here" sign.
13. Krabby Patty
Now: Buns are fluffier and have sesame seeds. Lettuce looks fresh.