Level 175 help:
4 of the same color = vertical power bubble
8 of the same color = horizontal power bubble
12 of the same color = all around power bubble
16 of the same color = diagonal power bubble
20 of the same color= rainbow power bubble
* after the 20 of the same color, the next power up is diagonal.
The beginning needs two diagonal. Use the rainbow power bubbles to help achieve that power up.
Example: There is ten purple next to rainbow power bubble then red. Connect purple to rainbow bubble then red to equal 16.
(Tip's power up can up in the beginning)
Good luck!

I started the level off with Tips power up. Then continue with the long strands of color.