>>45308866The Dark type is an embodiment of dirty tactics. The original Japanese translation is 'Evil' type, and this is shown as giving the Pokemon of this type underhanded or sneaky ways of fighting. Examples of this are shown in various Dark type moves:
Pursuit
Sucker Punch
Fake Tears
Beat up
Culturally in Japan, the villainous dark character must be beaten by the virtuous hero character. That is why Fighting types are super effective. They embody this heroism trait.
So why also Bugs? This is probably a reference to the series Kamen Rider, a show that has existed continuously from the 1970s to the present day and is a cultural phenomenon large enough that every child in Japan would know it. In this series, the usual premise is a Masked Hero riding a motorcycle fights the forces of evil with the Main character always using an Insect themed costume.
In fact, the Bug type move Signal Beam(シグナルビーム) is pronounced as English in the original Japanese versions, reminiscent of many Kamen Rider 'special moves'.
This insect association with heroism actually goes back further, with stag beetles representing the honourable samurai and becoming the basis for many real samurai helmet designs.
Another hint towards this connection exists before the Dark type was ever introduced. In generation 1, the villains often used Poison types. This is the only Generation where Bug types were super effective against poison!
The second angle : Bugs are known to swarm or cooperate in numbers that overwhelm the target. Similarly, if one wants to overthrow a great evil, an army or a cooperative society can collaborate to take it down with sheer numbers. Evil may strike one or a handful down, but the movement will overwhelm eventually.
So ultimately, Evil (Dark) is framed as being bested by discipline/heroism (Fighting), the collective effort of the masses (Bug), or pure goodness (Fairy).
