The game Shantae was released exclusively in English for the Game Boy Advance. There was never an official translation (localization) released for the Spanish-speaking market by the publisher (Capcom). Sorcerer V100 Talothral Exclusive Cap, Standard Talent
Based on your search query, you are looking for information regarding a of Shantae in Spanish ("rom español"). Joymii 20 03 21 Luna Silver Try Me Out 1080p
Here is the complete report on the status, availability, and technical details of this game. No, an official Spanish ROM of Shantae for the GBA does not exist.