The goals flew in during Tuesday's UEFA Champions League games, with Manchester City, Tottenham Hotspur and Paris Saint-Germain scoring five.
Raheem Sterling bagged a hat-trick, and the Premier League champions defeated Atalanta 5-1 after initially falling behind.
Spurs and PSG ran out 5-0 winners against Red Star Belgrade and Club Brugge, respectively, with Kylian Mbappe scoring a treble for the French giants.
Real Madrid grabbed a slim 1-0 victory on the road at Galatasaray with a Toni Kroos goal, handing the 13-time winners their first three points of the group stage.
Elsewhere, Juventus overcame Lokomotiv Moscow 2-1 with a late Paulo Dybala brace, and Bayern Munich edged out Olympiacos 3-2 after two goals from Robert Lewandowski.