Drama summons at least a gentle gust to blow your hair around. Conversely, awkward situations temporarily still the surrounding atmosphere.
Even if you're fighting god himself, you can always get strong enough to defeat him through hellish training and/or sheer determination.
When sexually harassed, women temporarily become strong enough to send men into space. Screw you, NASA, we can just accidentally grope this woman and get punched to the moon.
Having large eyes does not pose a disadvantage in getting debris stuck in them more often nor do they increase ones field of vision.
Hair cells naturally produce distinctively colored chemicals and retain them after death, hence the odd hair colors. They are stiffer as a result, hence the odd styles.
Female school uniforms in Japan tend to have rather short skirts, ranging from practically normal in Azumanga Daioh to please-violate-me short in Sailor moon, possibly even shorter in ecchi/hentai.
If an activity with a focus on collecting is popular, it is extremely popular and has great influence over culture and world events, possibly to the point of supernatural intervention.
The first girl you meet is who you are going to end up with [http://tvtropes.org/pmwiki/pmwiki.php/Main/FirstGirlWins].
If you tend to fight a lot, conflicts will not be resolved quickly. The fights themselves can be quite lengthy, saying nothing about the chain of obstacles and events you will run into along the way to your goal.
Young cute girls are cute and innocent most of the time, but can be extremely murderous and disturbed {I.E. Elfen Lied).
During moments of asskicking and climax, kickass music will play.
Male-to-female genderbenders are attractive and hard to switch back to male [http://tvtropes.org/pmwiki/pmwiki.php/Main/Ptitle5bsrye9z?from=Main.MandysLawOfAnimeGenderBending].
While talking, transforming, or in many cases charging, no one will attempt to attack you.
Giant robots are feasible and used in favor of remote means of warfare.
Guns are useless. Note that this is by no means exclusive to anime.
Many girls suffer from a very sudden, extreme case of bipolar disorder (I.E. Tsundere). Conversely, some may be the opposite and show little emotion (Rei and Yuki are very good examples).
Heroes are innocent kids, brooding emos, or muscleheaded/very determined badasses. For some cases substitute "brooding" for "whiny" with emos (I.E. Shinji at times, though as far as I'm concerned some of that whining is justified and he gets too much hate).
There are more, I just can't think of them right now.
