Which main developer made their first release in 1991 and created the Mega Drive/Genesis console?
CREATE TABLE table_12887260_1 (main_developer VARCHAR, first_release VARCHAR, console VARCHAR)
SELECT main_developer FROM table_12887260_1 WHERE first_release = 1991 AND console = "Mega Drive/Genesis"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_12887260_1 (main_developer VARCHAR, first_release VARCHAR, console VARCHAR) Question: Which main developer made their first release in 1991 and created the Mega Drive/Genesis console? [/INST] SELECT main_developer FROM table_12887260_1 WHERE first_release = 1991 AND console = "Mega Drive/Genesis" </s>