World D

World D-1

Flagpole. World D-1.

How to progress

1. Letter worlds are extra after the numbered game. FDS-style unlock: eight 8-4 clears (title-screen stars), then hold A and press Start. PixelQuest has not independently verified that combination on Nintendo Classics.
2. All-Stars: A–D can follow 8-4 or 9-4 automatically. Deluxe omits A–D. Do not mix those rules.
3. Play these stages only if your listing actually offers them. If NSO does not show A after 8-4, the world is not missing from this walkthrough — it is version-gated.

Hazards that matter

• Poison mushrooms
• pits

Notes

• FDS A+Start after eight stars vs All-Stars sequential vs Deluxe omitted. NSO listing not independently verified.

World D-2

Clear D-2.

How to progress

1. D-2 continues the extra-hard SMB2J layout. Poison, pits, Piranhas.
2. Flagpole or exit pipe.
3. Same 8-bit poison warning.

Hazards that matter

• Piranha Plants
• pits

World D-3

Athletic / special D-3.

How to progress

1. D-3 athletic. Wind and springs likely.
2. Flagpole.
3. Luigi vs Mario as before.

Hazards that matter

• Wind
• pits

World D-4

Castle D-4. Impostor or Bowser depending on version notes.

How to progress

1. D-4 castle. Axe.
2. World D-4 is the last letter castle. All-Stars may put a real Bowser here. Original-style may still use an impostor — UNKNOWN on Nintendo Classics. PixelQuest is not guessing HP.
3. If your copy returns to the title, you are done. If it continues, play the next letter world.

Hazards that matter

• Fire-bars
• lava