Fighting and action games, including a lot of shooters, come naturally to me, especially after spending a little bit of time familiarizing myself with the specifics of the system because I have good instincts for that kind of game. I'm fine with RPGs, too, since I'm good at planning out strategies beforehand and implementing them. I am not good, however, at micro-managing; RTS, large-scale strategy (i.e. Civilization) and other economy-based games are my most major weakness when it comes to game genres. Prediction is also a major weakness of mine; I think chess, for example, is absurdly boring because of how many moves you have to think ahead in order to get the upper hand. I mean, that's not a game, that's an algorithm. Chess can be procedurally "solved", so to speak, much like how Tic-Tac-Toe can be solved such that one can never lose, and can only draw, at worst.
Racing games are also pretty bad for me; I hate constantly needing to move forward, since I can never get into my "natural rhythm", so to speak. I can never calm down and simply do my thing in a racing game because I never feel like I'm aware of where my opponents are, due to the fact that I always have to stare straight ahead to avoid obstacles.
My skill at platforming games tends to fluctuate depending on the game, too; I beat "Touhouvania 2"[footnote]Koumajou Densetsu II: Stranger's Requiem, which is a Castlevania-themed Touhou fangame[/footnote] on normal, without ever touching easy, in a single sitting, but the mechanics of most Mario games make it difficult for me to get 100%.
Luck-based games are completely hopeless for me. My luck tends to be pretty terrible, though I do occasionally have small bursts of really good luck sometimes. If I can play conservatively, such as in Tales of Xillia 2's poker minigame, then I'm actually really good at gambling, but when it comes down to sheer luck, I almost always end up drawing the short straw.
I'm also bad at stealth games, for the sheer fact that I have absolutely patience for that kind of thing. Of course, there are exceptions; I happen to like Sly Cooper and Dishonored a lot because of how creative they are, and how you can move around the levels extremely freely. Most of the time, however, I feel like it'd be easier and more rewarding just to shoot everyone.