Sonic CD Classic
Yes, Sonic CD Classic has MFi controller support!
Sonic CD Classic on iOS does support controllers and is compatible with the MFI standard.
Time travel to save the world in SEGA's highly acclaimed Sonic platformer that introduced Amy Rose and Metal Sonic! Past, present, and future collide as Sonic battles to rescue Amy Rose and recover the seven Time Stones! Travel through time to defeat Dr. Eggman and his fiendish creation, Metal Sonic.
" [90%] - Vincent Low, Sonic the Comic #15 "An excellent platform game with an ingenious game structure.
" [85%] - Mark Smith, SEGA Force Mega #6 "Gameplay's as slick as you'd expect of a Sonic game; the same goes for the graphics.
" [85%] - Warren Lapworth, Mega Machines #1 TRIVIA - Sonic CD was the first game to feature Sonic speaking - leave Sonic standing still for three minutes to hear him! - The original release of Sonic CD featured a secret spooky message screen that would greet data pirates - Sonic CD features two endings, and was the first in the series to feature full motion video cut scenes.
Sonic CD Classic supports MFi controllers.