Neither Metapod nor Kakuna learns Harden at level 7 in Red or Blue. The feature was introduced in Yellow. Prior to Yellow, the only way to get a Metapod or Kakuna with Harden was to catch one in the wild. I've also read that Butterfree doesn't learn Confusion until level 12 in Red and Blue, although I haven't confirmed this. How should this be reflected in the table? - unsigned comment from The Almighty Doer of Stuff (talk • contribs)