Starting Bubbles: 50
Recommended Potions: 7 extra bubbles in the cauldron at start
Points needed for 1, 2, 3 Star: 70 000, 100 000, 140 000
Special bubbles: Infected Bubbles
Shoot at the both sides, to clear out bubbles that can be infected. The infection to the left side is lower than the right side infection, so that should be cleaned out first. The virus in the middle can be ignored and cured by making angle shots above it.
Video by Blogging Witches
Video by Luca
Video by Radka311079