Aquatranssexuals exist.
Small and cute always beats big and ugly.
Whenever an evil warlord/alien race/etc. wants to destroy/subjugate the world, he/she/it will always start out in Tokyo.
Tokyo is the most explosive substance known to man.
A well-aimed arrow can sever a man’s arms at the elbow, or decapitate a mounted soldier.
A single punch from an enraged female can launch a male into low earth orbit.
The human body contains over 12 gallons of blood, under high pressure.
All children are born by immaculate conception
The fourth law of Disney gravity states that that all villains standing near the edge of cliffs must fall off.
Female hormones are also really really really attractive to squids. (Any piece of tentacle hentai.)
Sudden changes in environment (e.g. exposure to cold water, night, emotional stimuli, etc.) may induce a complete change of sex in certain individuals. (Ranma 1/2, Maze, Futaba-Kun Change)
It is possible for a man to have a two-foot erection without passing out from blood loss. (City Hunter)
The human brain has been conditioned to ignore genocide if it is committed by cute teenage girls. (Dirty Pair)
Contrary to popular belief, aliens do not speak English. They speak Japanese. Specifically, Kansaiben. (Urusei Yatsura)
A person can levitate by pointing two guns at the ground and firing them. Said guns will also never run out of ammo unless reloading them will cause even funnier results.
Any electronic device with a selection switch can be reprogrammed simply by writing something new on the faceplate. If it says “destroy rabbit” erasing that and writing “destroy Elmer” will change the programming.
A baby chicken-hawk can carry a rooster of approximately 100 times it’s mass.
The ingredients for a chocolate malt can be found on the table in any mad scientists lab (hey, they gotta eat and drink too, right?)
Also, the spark from a lit fuse will jump of of said fuse (extinguishing the fuse entirely) to any nearby line of gunpowder as long as it leads into the pocket of a villain.
The skull, being highly malleable, will take the shape of any object it is forced into. When the object is removed, the skull can only be restored to it’s original shape by being shaken vigorously.
The sky is always clear, unless its Christmas or a mountainous area.
Repeated shocks from your yellow rodent will result in the inability to recognize an effeminate blue haired guy, a redhead with freakishly long curved hair, and a talking cat in bad disguises.