Probably the biggest one of them all (at least for me, that is) is how King Rhadamanthus found Kratos worthy of Elysium. This is what Minos says the man thinks of Kratos, and a nearby book on the upper level says that only those found worthy by the judges may pass through towards Elysium. While Minos then says "The afterlife is not yet ready for you", that just means "It ain't your time, my boy. Not yet." The actual fridge part came in after I paid attention to the dialogue and read the book, wanting to see if there was anything I might've missed. If we assume that Kratos DID die at the end of God of War 3, then that means that he's in Elysium with his daughter again and possibly his wife too. He's finally achieved not only the capability to forgive himself for what he did, but also the chance to spend eternity with them. That's a pretty big Tearjerker for me.
Granted, of course, if he turns out to be God then it's all moot anyway since he's got Hades' soul inside of him and has dominion over death and the afterlife, the former due to fighting Thanatos. Still, Tearjerker.
In Ascension, there's a subtle focus on Apollon, as Kratos frees his temple at Delphi from the divine twins and goes to Delos (the god's birth place) to reconstruct his statue and acquire the lamp. Almost as if the god was helping him subtly. Which makes sense - what are the main enemies of the game? The Furies, who cast illusions. What is Apollon's domain? Light, and thus truth, hence his role as the "oracle god". Combine that with Apollon's nature as a god of justice that punishes evil doers - something that the Furies not only were taking too far, but also corrupted as they were truly evil -, and you might see why he would want them dead.
Furthermore, the developers really spared no expense in his attributes - snakes are blatantly depicted at Delphi, while Kratos acquires Zeus' lightning there, as Zeus was another oracular god often said to be the true source of Apollon's light and prophecy.
No pun intended, but considering that Theseus is the son of Poseidon, his powers over Ice (frozen Water) may actually be justified.
Why did Kratos keep Helios' head? Because three of the four people he didn't mean to kill, his family and the last Spartan were killed in the dark, and he wanted to avoid doing that again.
Hercules is the only god in the game to use his Latin name and not his original Greek one. His outfit also looks a lot more Roman than the other Greek warriors we see.
Kratos is in a Roaring Rampage of Revenge and is downright furious throughout the entire game. When you think about it, lashing out in anger is spontaneous and doesn't require much thinking. No wonder the game is a button-masher...
Not exactly. While the overall combat tactics themselves aren't hard to get used to, actually fighting tough enemies in the game require studying their moves and precise time when dodging and attacking. You can also learn new moves that require various button combinations. If anything, simply mashing the buttons to attack will (in the long run at least) get you killed quickly.
That would show Kratos working through his rage. No wonder why he rose so quickly in the ranks.
The mural of the Three Wise Men visiting Baby Jesus in God of War II seems a bit out of place in an overly violent game based off Greek mythology. However, it actually provides some Foreshadowing for what happens in the third game. The birth of Christ is supposed to be a sign of hope for humankind. Said hope was imbued into Kratos when he opened Pandora's Box to combat the evils set out by the box, and was released when Kratos killed himself with the Blade of Olympus. Guess who also died to give humanity hope?
Something I didn't catch until about halfway through the second game: the first game and most of the second show an _absurdly_ detailed knowledge of Greek Myth, down to getting it right on subtle (and not-subtle) distinctions between the Greek versions of the gods and their roles and the Roman versions.
Most specifically, Rome treated Ares (Mars) as THE war-god. Title of the game notwithstanding, the greeks divided the role much more evenly between Pallas Athena and Ares. Athena controlled the "civilized" aspects of war, like strategy, cunning, conservation of resources, logistics, occupations, honor, etc. Ares controlled... the other bits: slaughter, mayhem, basically all of the "war is hell" aspects of war. The whole "is Kratos the hero or the villain" ambiguity actually fits his role perfectly, as Ares was probably the most outright 'evil' of the gods, being actively bloodthirsty and malevolent rather than just prideful and possessed of other, more important things to deal with than humanity.
Similarly, Hades is played as somewhat possessive, but overall the most reasonable and outright decent character in the game save Athena. He only attacks Kratos because Kratos screwed him massively, then walked right into his throne room to spit in his eye. This is very consistent with his portrayal in Greek myth, where he was by far the most adult of the big three, and the only one that actually managed his domain instead of running about having affairs all the time.
How exactly did Daedalus, a man being graphically killed and hanging by his arms (which are spread open by said chains), write such a long letter to Kratos in his own blood?
Maybe Athena helped him.
When Kratos gets the power to control time at the end of GOW II, why didn't he use it to go back in time and stop himself from killing his family? Or even making the deal with Ares?
Because Kratos is the "only have a hammer" sort of thinker. He thinks he can solve all his problems by killing things.
Another possibility is that Gaia had tangled her own timeline with Kratos', thus preventing him from changing those aspects of time and being able to return to the Titan war. Kratos didn't question it though, probably being blinded by rage as he is want to do.