Whose Hellos Are These, Anyway?

In a world where every greeting is a riddle, you're an overworked celebrity greeting card writer who stumbles upon a bizarre conspiracy: every time a person greets another using a stolen hello, they secretly lose a part of their memory! Now it's up to you to craft the ultimate 'hello' that will outsmart the mysterious 'Hellos Collective' who are bent on keeping this world of forgetfulness alive. Navigate through absurd situations, interact with quirky characters, and solve wordplay puzzles while uncovering the strange origin of these greetings that hold the key to everyone's memories.