A lot of casinos actually have these. In the Northeast, Twin River and both the CT casinos do. In Vegas, quite a few on the strip have Unicorn and King of Africa still, and in OK, I've played them at the Winstar and Choctaw. Not sure about the midwest.
Thanks! Beware of the new versions of KOA and unicorn, everything that was great about g+ deluxe games is gone from them besides the music. They basically seem to be engineered to take your money as fast as possible. The gameplay has to be 2-3x faster than the original, if not higher.
Thanks! Definitely the original, there's very little I like about the new versions. The thing I like the least about them is how fast the reels spin. I lose money on them at what feels like 3x the speed.