It seems like some people haven't read the rest of the thread or something...
The hero metal fell down with frog and floated in the river at the bottom of the mountain in the flashback. He also never got it back. Tata has it. I also think that if Frog went back up to the top of the mountain he would have seen the Masamune as it is sticking straight up out of the ground in the cave(Still Possible though). If Frog did go back for the bones at a later date, who wrote the nasty remark on the grave is the next question to figure out.
Uh-HEM...Frog DOES get the medal back. Tata tells you that he gave it too him. The hero medal came down after Frog, that's how come he's already down there before it comes, not to mention his blinking as if coming back from a black out perhaps.
The Masamune scattered after it was destroyed, or else we would have seen it somewhere around the fight as it was happening. Not to mention that the Masamune appears in a whole different place (inside the cave) when you find it in 600A.D.
As I've already mentioned in this thread, I believe Frog himself wrote Cyrus' tombstone. At that moment in the story, Frog would be feeling incredibly guilty and at his utmost self-loathing. I think this self-loathing transfers onto Cyrus. He sees him as a fool for what he did at that time. It's similar to how Magus sees Crono after the Ocean Palace disaster with Lavos.
[quote"Radical_Dreamer"]It's also possible he merely gathered the corpse, carried them to the town outside the mansion where Cyrus is burried, and deposited them with the mayor or some other public official, then disapeared back into the night.[/quote]
Then how would you explain the NPC "monster" quote saying that some wierd creature was bringing it up there?