Starting Bubbles: 55
Recommended Potions: Rainbow Bubbles +3 holes in the ceilling
Points needed for 1, 2, 3 Star: 80 000, 110 000, 140 000
2 Bomb Bubbles
Shoot right up in the middle to get the lower Bomb to drop fast before the virus attach itself to it. You can even use both RB Bubbles for this if needed. Then fill the potential gap near the upper Bomb Bubble to stop it’s countdown. Leave as big as possible clusters of crystal bubbles to drop on the Spiders. You do that by going up as near the virus bubbles as you can.
Guide tested for 2 Stars.