Happa is a small, pale green Pokémon with a darker necklace of buds. It has a large head in proportion to the rest of its body with large eyes. It has four short legs with a single nailed toe on each and a small tail. Its most distinguishing feature is the large leaf on the top of its head.
Happa appears identical to how it does in the final version of the game.
Bold indicates a move that gets STAB when used by Chikorita
Italic indicates a move that gets STAB only when used by an Evolution of Chikorita
Trivia
Happa, like other early-game Pokémon in the demo of Pokémon Gold and Silver, is missing evolution data for its first evolution, likely to prevent Spaceworld attendees from seeing certain unrevealed evolved forms.
Origin
Happa has similarities to sauropods. Its shape and appearance also alludes to that of a pear, or a Belgian endive, a type of chicory.