Hiro's relationships with the other characters are directly connected to his fighting ability, so failing to get all the best equipment will make everyone hate him.
Subverted: Hiro and his party are all on a mission to save the world, and all recognise that they need each other, even if they cannot stand each other at all.
Double Subverted: Hiro and his party are all on a mission to save the world, and all recognise that they need each other, even if they cannot stand each other at all, right up until a pivotal moment in the plot where it turns out only the power of friendship can save mankind.
Parodied: The party will stop fighting mid-battle, and insist that Hiro give them gifts or spend time with them before they will fight.
Zig Zagged: In the beginning, relationship meters are purely cosmetic, not even affecting dialogue. However, later in the game, the party starts gaining stronger abilities which are Lost Forever if Hiro has a low relationship with them. Eventually though, the same party members gain stronger abilities exclusively if your relationship with them is low.
Averted: Relationship meters are purely cosmetic, or aren't included.
Enforced: The various relationships Hiro can forge in the game unlock various choices and decisions that lead to the game's various endings; failing to work on them properly means the player will wind up stuck with a Bad Ending or even a mere Non Standard Game Over.
Lampshaded: "It's petty of me to leave you when you're trying to save the world, Hiro, but I can't take you anymore."
Exploited: Emperor Evulz' spies inform him of the strained relationships, and he tries to tempt those allies into joiningThe Empire.
Deconstructed: Hiro magically becomes stronger or weaker depending on whether he is liked or disliked by society at large. Because hardly anyone knows who he is, he starts off very weak...
Reconstructed: ...however, as he travels, meeting people and defeating monsters, he starts gaining a reputation among the populace. So, the farther in the game he gets the more he must refrain from taking actions which will hurt his reputation, as every infraction will drastically decrease his strength.
Played For Drama: As their trust in him fades, Hiro's companions grow increasingly distant and grow less likely to listen to him. If Hiro doesn't find some way to repair the relationship, he risks losing them for good — onewayoranother.