Click the 2 player button. you will see an in app purchase screen saying confirm payment. you must be connected to the internet to download it. the 2 player unlock is also 1 dollar.
U have to get two player key in store
2-player mode is in a special area called the Sonic Simulator. It has a metal Sonic face when you choose it.
to unlock squadmate mode have player two press the A button [if controllers are on]
You have to buy it for two dollar over the network.
you don't unlock it, it's automatically optional when you start a new file. go to the Sonic Simulator.
Keep earning emblems (80 I think...). Also, she is only available for two player mode, not the single player.
get 12 french flies and go back to melee mode put the stylus on the character you want to pick then say yes and the game will unlock it for you keep doing that until you have all the characters and their alternate costumes
ya there is a mode of two player
Single Player --vs mode --one player --survival --time attack Multiplayer --two player --vs mode --two player survival --two player time
You can unlock Utrominator by buying him once you beat story mode. Im not very sure how you can unlock Fugitiod, but Ill figure out evetually. you unlock fugitiod when you beat all 50 missions on mission mode.
There are two player modes is the bonus mission mode, but the story mode is only one player.
it is always a 2 player mode. if you use PSP, play on the network mode with a friend with PSP.