In the action packed storyline of World 12, you may discover that you are unable to revisit Stage 2. This is due to being on the run from the Demon World's police as part of the storyline and is not a bug or error. If you cannot revisit Stage 2, continue your journey and revisit this stage later. After clearing more stages, you will be able to return to 12-2 without issue.
World 12 - Stage 2: Cannot re-enter the stage
Last Updated: 109d