The team behind the Map Editor for Animal Crossing have released a new update to their Map Editor, heres whats new:
Catalog-fill working better. Now fills fish and bugs (again). Per player option.
Added a few more "not used" items that may be fun to play with (like single use disappearing umbrellas)
Support for more dangerous items in your inventory (or wardrobe). Commonly called 'glitched' or 'seeds'
Editor has 3 danger levels.
Danger Level 0 - safe items like in past releases, no known problems
Danger Level 1 - 'glitched' flowers, 'glitched' trees, 'glitched' patterns, 'glitched' weeds. Fun to play with. Can be used to vandelize towns, but not break them.
Danger Level 2 - 'glitched' special trees (like money tree and furniture tree). Should be safe like Level 1 items, but don't place too many of them in a town. Also some non-permanent but irritating-to-get-rid-of items.
Does not include Danger Level 3 (rocks, permanent), or Danger Level 4 ("mansion seeds" and other building seeds). May be added in future releases if people play nice.
For more details, see the Danger Level topic