I just completed Phantasy Star, an RPG by Sega for the Master System released in 1988. It has a bright and colourful sci-fi setting, blue skies, space ports, and laser swords.
This random npc has it right:
The translation was clearly done by a non-native speaker, it’s pretty awful.
The story sets up a dictator called Lassic to be the final boss.
But then in true RPG fashion it’s revealed that the real enemy is a demon that was controlling him.
There’s some odd credits, including this one: