|Level 639||Level 640||Level 641|
Level 640 is the 10th level in Opulent Observatory and the 147th ghost level in Bubble Witch 2 Saga. To pass this level, you must free the ghost and score at least 2,000 points in 16 moves or fewer. When you complete the level, Bubble Rain is activated and will score you additional points.
- This level is somewhat easy even though chameleon bubbles make it a luck level.
- Clear the bubbles normally.
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