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"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Which main developer made their first release in 1991 and created the Mega Drive/Genesis console? ### Input: CREATE TABLE table_12887260_1 (
    main_developer VARCHAR,
    first_release VARCHAR,
    console VARCHAR
) ### Response: SELECT main_developer FROM table_12887260_1 WHERE first_release = 1991 AND console = "Mega Drive/Genesis"