I didn't even know you could do that and I've had this game for years.

[teutonicman]

I played Pokemon for many years. Up until last year, I didn't know that Rock type attacks were neutral against Rock types. I thought it was Not Very Effective.

I literally smacked my face with my hand for not knowing that. >_>

What the hell pokemon!!! That makes no sense!

It's not all rock/paper/scissors ;D

I suppose it would make sense for something like Earthquake to damage rock.

Oh I know that it's not all rock/paper/scissors. Earthquake to damage rock would be ground type to rock type (ground is super effective against rock). It would have to be something like boulder falling on boulder.

OH MY GAWD I'M ARGUING POKEMON TYPE EFFECTIVENESS

 

[Ckeesy]

On my most recent playthrough of ME1 I finally figured out how to map powers to the controller buttons. On previous playthroughs I'd always noticed the "Map ___" option, but didn't realize what it meant and ultimately ignored it.

 

[Wayneguard]

My first thief experience was with deadly shadows so i did not know that the series began exclusively as a first person experience. I literally beat the game a dozen times and never knew you could go into first person.

 

[Ldude893]

Pushing over cows in Fallout 3. I was so surprised when it first happened to me.

Wow, you can do that?
I still won't do it in fear of bad karma.

 

[Holty07]

Also in Ocarina of Time, if you slash a sign down, then play Zelda's Lullaby, the sign will fix itself.