One free burrito if you can find a way to rewrite this query without sub-selects or the use of the DISTINCT keyword.
SELECT DISTINCT
t.id
FROM
tag as t
JOIN
item_prototype_tag as ipt ON ipt.tag_id = t.id
JOIN
shop_item as si ON si.item_prototype_id = ipt.prototype_id
JOIN
palette_item as pi ON pi.shop_item_id = si.id
WHERE
pi.player_id = ?
