What is Lantern Streak? 

• Complete a level on your first try to earn a  Lantern Streak.
• The  Lantern Streak will add Power-up when you start the next level.
• The  Lantern Streak has 5 stages in total.
• Maintain higher stages to receive more Power-ups.

What is Lantern Tournament?

• Occasionally, the Lantern Streak is accompanied by a Tournament Event.

You can find the information about the Tournament in here.