🌀1-2 → Worlds 2, 3 or 4: At the end of 1-2, jump on top of the exit pipe and walk right through the wall. Three pipes — left = 2, middle = 3, right = 4. Skip straight to World 4 for the fastest path to the later game.
🌱4-2 → World 5: Hit the hidden block above the last platform before the second moving platform section to grow a beanstalk. Climb it to cloud level, exit from the right.
🌀4-2 → Worlds 6, 7 or 8: After the downward-moving lift in 4-2, hit the hidden blocks above the platform to reveal a second beanstalk. Climb to cloud level — three pipes: left = 6, middle = 7, right = 8. Use this to jump directly to World 8 for a full game skip.
⚠Note: Warping skips you straight to that world but you don't need to clear the skipped worlds for the ending. The only penalty is missing the flagpole and coin points along the way.