Mini Review on Innex Firecore. (This is not the handheld)
The system is tiny. Smaller than the Genesis 3, but stays in place better due to better rubber feet on the bottom. The control pads are not that bad as they mimic the Genesis six button pad, although it is a cross between the one that came with the Genesis 3 and original six button arcade pad, but has no "Mode" buttons. It has a PAL/NTSC switch on the back and also has a cart slot that fits Japanese Mega Drive carts. The system will also take actual Genesis pads. I have over 200 Genesis carts and tested all of them. The only two that did not work were Super street Fighter II and Virtua Racing.
There are two down sides here though. The system only supports Mono sound and also, the sound emulation is not right. They must not have used a Genesis sound chip or even a proper emulation as it does not sound right. Still, if you do not have a Genesis and want one, it's worth it. It also comes with 20 games built in.
They Are:
Sonic & Knuckles
Alex Kidd in the Enchanted Castle
Gain Ground
Arrow Flash
Shinobi III
Ecco Jr.
Ecco The Dolphin
Golden Axe
Crack Down
Altered Beast
Flicky
Decap Attack
ESWAT
Alien Storm
Shadow Dancer
Columns III
Sonic Spinball
Jewel Master
Kid Chameleon
Dr. Robotnik's Mean Bean Machine
The included games actually sound fine, for the most part. Rather odd.
As for the portable, it has been delayed until later this month as they are trying to get as close to 2100% compatibility as they can. That's mwhat I was told anyway. Hope that this helps out a bit.