This Game was announced in 2009, Along with Phineas and Ferb 2: Ride Again (A Downloadable Game)
It was a normal day on Danville and Phineas and Ferb were sitting under the tree. Phineas didn't know what to do today then a vortex came up and sucked Phineas and Ferb got sucked into it. They went to a Parallel Universe of Danville by Darkacus who is a Black Goo form of Eradicus. The universe is controlled by Yin and Yang who are jealous of Phineas and Ferb's popularity. The Flynn-Fletcher's house is Yin and Yang's castle. Now Phineas and Ferb must convert Alternate Danville to Phineas and Ferb Land instead of Yin and Yang Land, defeat Darkacus and Gain Yin and Yang's Trust
The 2006-present SEGA Logo, in a Black and Blue Background, Instead of a Glow Linears, is replaced by Black Goo. and the Black Goo forms the SEGA Logo and the Black and Blue Background turn into a White Background, at the End, the SEGA Logo dissolved.
This is the Wii game of the month
Another amazing Phineas and Ferb game