Years ago I inherited my wife's family's Game Gear. After a recap, and replacing the backlight, I started tracking down games to play on it. It's been great exploring a whole library of games that I skipped out on as a kid! (I was a Nintendo kid) Now I have a nice little library of carts to play on this beast of a 90's handheld.
I think it's the 4th zone, the 3rd area involves a bunch of spring jumps into the void just to get to the boss. No clue why I spent the time to memorize that level, but I did.