Starting Bubbles: 50
Recommended Potions: +7 bubbles, +3 holes in the ceiling and the RB Bubble.
Points needed for 1, 2, 3 Star: 80 000, 115 000, 145 000
Doom Skull Bubbles
2 Bomb Bubbles
Start the level by shooting straight up, so that you can get to the infection coming down in the middle. It is no REAL hurry, but the bubbles in the middle have to be taken down first anyhow. AT LEAST the 3 lowest row int the middle have to be cleared out. Preferably four or five rows up of bursted bubbles in the middle to get a good sight and aim for taking out the Bombs on Both sides in the upper part of the level. (See Pic) You can use a RB Bubble to achieve a good start, as that will pay off in a nice way clearing the level in the End.
When you get to the part taking out the Bombs, try not to set them both off at the same time, you’ll have a much easier time dropping them safely if you take them one by one or set the pother one off when there is a certain drop for the other. There is no way(without Charms) to complete the level if you try to plug a Bomb for good, you need to drop it quite soon anyhow. Temporary plug of a Bomb could be needed though.
After the Bombs are taken care of, use bankshots to above the skulls to get nine holes in the ceiling and finish the level.