Play Curveball unblocked game as a similar onrto Glow hockey which was legendary at Android and iOS stores to play unblocked. The game starts with the 1st level. When you score 3 goals against CPU opponent, you make it into the next level. The difficulty is that you’ve got 4 lives at total. Namely, your lives aren’t reset after each level like your opponents. When you concede 4 goals during the game in any level, you’ll have to restart. Draw curves with the ball to score easily and win some extra bonus.