為慶祝 Sonic the Hedgehog 的生日，SEGA 三款 Sonic 遊戲推出減價優惠，優惠會在 22/6 完結，即是今天，有買趁早。
In honor of Sonic the Hedgehog’s Birthday, we have slashed prices on all of our digitally available Sonic games!
Sonic CD
US$4.99 US$2.99 (HK$23.20)
https://play.google.com/store/apps/details?id=com.sega.soniccd
Sonic the Hedgehog 4: Episode 1
US$3.99 US$0.99 (HK$7.68)
https://play.google.com/store/apps/details?id=com.sega.sonic4epi
Sonic the Hedgehog 4: Episode 2
US$6.99 US$4.99 (HK$38.72)
https://play.google.com/store/apps/details?id=com.sega.sonic4ep2thd
資料來源：SEGA BLOG