Starting Bubbles: 45
Recommended Potions: Yellow Spiders, 3 holes in the ceiling and the RB Bubble
Points needed for 1, 2, 3 Star:
75 000, 110 000, 135 000
Doom Skull Bubbles
Level 2 have LOTS of both Doom Skulls and Spider Bubbles. The Skulls are placed in a real nice and even pattern, so it is fairly easy not to hit them. this way you can take out the bubbles between the skulls and avoid the spider bubbles for as long as possible.
The spider bubbles on the other hand is the reason that you really need to think through your shots. You can not avoid the Spider bubbles indefinitely, but you can try to minimize the damage they do by watching out where you drop them. Save your green spiders, try to drop spider bubbles above blue or yellow spiders instead!