Dude, that's crazy! Ghosts N' Goblins was mine, it drove me nuts, every iteration of that game can drive you nuts. That's the sleeper mind-fuck challenge in gaming - it will just wear you out. Your mind tells you fuck this, don't continue, don't give that bastard another credit.
I suck asshole at shmups.
Fighters, I wanna say I'm good, but I'm sure I'm not shit, I've never played any fighter in true competition. The only game I can say that I stopped playing undefeated was DOA3 when Xbox first came out, but I don't even tell people about it, because let's be honest, it shouldn't be mentioned in the ranks of real fighting games. The only reason I got so good at that was because there wasn't shit for games when the Xbox launched, it was fun, looked really good, levels getting tore up, tits bouncing.
FPS/3PS/Shooters are the only thing I can pick up and play pretty quickly - could be the years of Quake and Unreal, but I do alright kb/m or controller. Still not pro, but I can swing dick in noob rooms.