An interesting game and not that long of a layout. How you play depends a lot on your color combos and I was just lucky. You must drop the bombs and a portion of dooms. I started up one side and after one bomb ignited started across the crystal section and up other side as well dropping lower dooms. When the bomb on other side ignited, wasn’t sure I would get the first one dropped in time. But I did. You could see ceiling once a portion of dooms and crystals were dropped so finished dropping bombs on other side. Only two of the 4 bombs ignited. Worked up to ceiling and dropped avoiding shadows and never used my rainbow bubble although still highly recommend. 2 stars
You can see the ceiling when screen opens and the bomb ignites. There are actually 3 infections in ceiling but my 3 holes in ceiling removed one each game. There is one in center as well as corners. Drop your bomb first using rainbows if needed. If you can get path to links will drop your bomb. Try to somewhat contain infection at same time as can still interfere with your game. After bomb is dropped work your way to ceiling trying to gain on colored floor spiders before dropping. 3 stars.
Contain the infection quickly or it may interfere with you reaching your locks. Drop infection after you break chain. The bomb will ignite when chain breaks but I found was easy to drop quickly. Proceed to ceiling and drop. Avoid your shadows if possible to prevent bubbles from emptying cauldron. Although you do have a large number of bubbles at start. Rainbows can be very useful but I did not use mine tonight. 3 stars