I was going to reply on GameFAQs, but I kept going over the rate limit. >_<
I'm going to cover things that are moreso personal opinion about the game than small glitches, and try to only add things that haven't been spoken of.
- I think the dialogue's a little dry, ESPECIALLY when it comes to the main characters. It feels like one person speaking from all these different viewpoints. This is especially prevalent in the main heros themselves. Magus is actually handled well, and Crono's as mute as he ever was, but Lucca is missing a bit of her fun arrogance and intelligent charm. Glenn seems to be a wise-ass, which to me doesn't even fit Glenn, and... I just don't like how Belthasar was handled.
- How is Glenn not Frog? Magus is still alive, and Frog shouldn't have reverted... unless Magus simply called off the spell, which I felt he should have done in Chrono Trigger anyway.
- I like the dungeon that leads to Dalton, and outside of the riddle (which I felt was out of place, if only because it felt similar to how Dalton's dungeon was handled), I felt Singing Mountain was fine. However, I think the enemies could be more creatively handled. Most just uncreatively appear on screen and attack, instead of giving you an opportunity to avoid them.
Further, the way the enemies just spontaneously appeared, from nothingness, in the hallway before the Epoch was rather disappointing. There were four pillars in the area when the Imps appeared... I think it'd have been more interesting to have them jump out from behind those pillars.
- Dalton's still his good ol' mix of humorous and psychotic, but I think more humor was needed. For example, when you drink the Soup in 1999, the dialogue appears as 'HP/MP restored, and you're NOT hungry!', referring to the Entertron bit in CT. I think something more like 'HP/MP restored... but you're bloated from overeating', accompanied by an appropriate pose (I think even the 'hunger' pose from CT would have worked) would have been more humorous. Keep the pickle man though... better yet, find a way to include him in 600 AD.
- WHERE'S FROG!? He's my favorite CT character, and that he wasn't playable in the demo was disappointing. It's only a demo though, so I'm sure that can be worked out. And playing as him in GLENN form would rock.
- I feel (and again, this is merely personal opinion) that the story tries too hard to be deep. The original CT story, in spite of having its twists and turns, was never complicated. That, to me, was part of the charm. The story was solid, but still simple to follow. Meanwhile, the Crimson Echoes demo had more twists than the entire CT game put together, and can be more difficult to follow.
As well, some things don't tie in well. For example, if the robotic (I assume he's robotic) soldier got sucked into Chronopolis along with Crono, Lucca, and Marle, wouldn't he just appear somewhere nearby? How did he get into the Chronopolis time machine without anybody noticing?
- Too many people dying all over the place. The Dark Ages elder dies, Kino dies, and Crono's hacking people up left and right. In the original CT only a few people ever actually died. Marle died for all of five minutes, and a few Guardia soldiers died on the bridge fighting Ozzie's troops. There may be a few other examples (the man that turns to bones in the Guardia Castle prison), but generally the death count was low, and Crono didn't become a death machine that hacked away at everything that he simply glanced at. If that's what he was about, a second battle with Azala would have never occured...
- You give Schala to us, then take her away. DRAT!
- Dalton needs to become playable, if only for humor's sake.
I'm sorry if I appear to be nitpicking. The demo WAS great, and in fact even if NONE of these things got fixed (save Frog being unplayable), I'd still get the final product. I think that the more feedback you get though, the more you can potentially improve.