Tropes that I have found:

A Long Time Ago, in a Galaxy Far Far Away... (Arcadia is so far away from earth that all the shit that has happened has credibility)

Mooks (Yakuza, Democracies troops, BoP troops, henchmen)

Trapped in Another World (Most people)

The Multiverse (RP)

Uniformity Exception (Kolons, maybe)

We Will Meet Again (Alliance of Conquerors)

Yakuza (Space Yakuza)