The worst thing is, the Master System Sonic 2 is a billion times easier than the Game Gear one I had! The first boss is exceptionally easy for a start, as all the bombs bounce in the same way. Speaking of the Game Gear one, another area I loved to hate was the underwater level, where you had to travel around in a bubble and dodge, inch-perfect, lobsters, spears and spikes. Really hard, frustrating, technical. Watched a video on Youtube yesterday that showed there's a bloody invisible shortcut that makes you skip all the hard bits! Couldn't believe it - sixteen years of pain!
I'm an defender of Sonic kinda-3D, aside from the Mega Drive special stages which were a joke. Yeah, control was a bit dodgy, but I got used to it quite quickly. It'll always have a soft spot in my heart due to the fifth boss, the one in the lava zone. He killed me countless times before I worked out a strategy to kill him within 12 seconds and had a field day with the level select taking him out over and over again with a twisted smile on my face. The final boss is excellent, one of my favourites in the series. Never played the Saturn version though, which I may well have to get now. The special stages on that look fantastic.