Sonic and Angry Birds have combined forces for the ultimate mobile crossover event of a lifetime. 5 mobile games will have new events that see Sonic and the Angry Birds crossing over into each others games from Sonic Forces, Angry Birds 2, Sonic Dash, Angry Birds Dream Blast, and Angry Birds Friends. Engage with these events to help take down Dr. Eggman and the Pigs respectively. The Sonic and Angry Birds Mobile Crossover Event runs from March 14 through March 21 on iOS and Android.