One game that has unchallengable space in my brain is The World Ends With You. Or TWEWY if ya nasty, it's one of the first games that I played which challenged it's own core theme of friendship. And it's not challenged in a shallow way either! Which was crazy for me as a kid. Also Beat, he's cool

a cartoon of a man with chains around his neck and a speech bubble

ALT: a cartoon of a man with chains around his neck and a speech bubble