We do not want the mecha-dragon to have any features that would impede its mobility or agility, such as excessive weight or bulkiness. We also do not want any features that would be deemed aesthetically unpleasing, like a disproportionate body or misshapen limbs. Additionally, we do not want any features that would compromise its defensive capabilities, such as weak armor or lack of weapons. Overall, we want the mecha-dragon to be a sleek and formidable machine, both visually and functionally.