Human
Humans (Scientific name Homo Sapiens) are a species of bilaterally symetrical carbon based creatures native to earth. Humans have four apendages, two for manipulation, two for locomotion, stand upright and have a brain contained within a top mounted head. Humans on average stand between 1.6 and 2 meters in height and weigh between 40 and 60 kilograms. Humans are descended from arboreal omnivores which moved onto the plains of Africa.
Humans are a playable race in almost every game, which is a complete mystery to most. If you're going to imagine your character as a gun/spellslinging, wall-vaulting, asskicking superman, what's the point of suddenly slapping that little bit of realism in there? Therefore, they are largely overlooked in most games (except for 3.5e D&D players who HAD to have that extra first-level feat).
Humans are represented in most games as the most balanced, versatile race, which is a blatant bit of self-flattery and can be read to mean that they suck equally at everything; except for having one more skill point per level than everyone else (again, 3.5e). You would think that human's exceptional endurance compared to other species would come into play, but it never does. Most of the time, you'll honestly prefer some of the actual DEFINING TRAITS that come with playing another race, whether it's Never-Say-Die Elfdar vehicles (as opposed to Spess Mehreen 14-armor dickery) or some kind of crazy mutation/horns/dragon wings. Basically, the benefits can never truly erase the boredom you'll get from still being a human, despite all your other options.
Human Special Rules: In every scifi movie and game involving aliens, humans MUST suck. No exceptions. Rule number two humans always have crappy weapons ie: Halo. Bullets vs. Plasma. Warhammer 40,000 lasguns vs. EVERYTHING. Rule Number Three. We ALWAYS WIN ALWAYS.
Also, our butthurt knows no fucking bounds.