When playing Classic Petal Plus, what you should do is just to connect the same color petals. Gray petals are the blocks.The score you will get each time equals the square of the number of the connected petals.Classic Petal Plus supports GameCenter and the score depends on how fast you can connect the same color petal.
Full Specifications
What's new in version 1.1.0
General
ReleaseMay 23, 2015
Date AddedMay 16, 2015
Version1.1.0
Operating Systems
Operating SystemsiOS
Additional RequirementsCompatible with iPhone 4. iTunes account required.