Notes:

Melee:
1. The helicopter that he steals in Earthbound appears in Fourside
Brawl:
2. Porky Statue boss
3. Porky in his spider mech. Boss
4. Porky Statue Trophy
5. Porky in his spider mech. Trophy
6. Porky Sticker
7. New Pork City
Smash 4:
8. Porky Statue Trophy (3DS)
9. Porky in his spider mech. Trophy (Wii U)
10. Smash Tour, Porky appears as an item.
Ultimate:
11. New Pork City is back
12?. Fourside is back, but the helicopter returning hasn't been confirmed yet.