CREATE TABLE table_21253 ("Game" FLOAT, "Date" TEXT, "Team" TEXT, "Score" TEXT, "High points" TEXT, "High rebounds" TEXT, "High assists" TEXT, "Location Attendance" TEXT, "Record" TEXT)

Who all had the most assists in game 12?
SELECT "High assists" FROM table_21253 WHERE "Game" = '12'
SELECT "High assists" FROM "table_21253" WHERE "Game" = '12'