When you first open up level 130 you do not see the infections, but I assure you there are one at each side dripping down doom skulls. At the picture attached, you can see the lowest you can let the right hand infection come down. if you let it come lower, you will not be able to see above the infection.
History; Level 130 have been changed in late May 2012! Probably because king.Com wanted to introduce the Mystery Bubbles earlier in the game to people that haven’t played through it yet. The old Level 130 that had nasty Morphs in it have been changed to a really fun and long level with Bombs and Mystery Bubbles! It reminds you of level 55, but is much more enjoyable. a great decision from King.Com to change this level, thank YOU!