Alright, here's a list of the bugs I found while replaying the game. I haven't played past the part that was in the released demo yet (after the "chapter 1" textbox).
They're mostly little details which don't crash anything, but I guess they still have to be mentioned.
- Guardia soldiers are replaced by Melchiors
- The 3 items given by Crono's Mom are replaced by a Shamshir and 2 nameless bows, and only the Red Katana/Shamshir disappears after you deliver it
Crono's House:
- The game freezes when Lucca appears, but you can still go to the castle meeting without her
Leene Square:
- The soda that you buy from the little girl restores HP/MP but doesn't do the healing sound
- No music on Nadia's Bell screen
- The Yes No options are hidden by the cursor in the textbox "Do you know the latest gossip?"
- The Telepod scene still plays
Lucca's House:
- The CT:CE Lara appears on the first screen but the old CT Lara also appears in her room
Vanguard Post:
- Can't access it from behind on the world map
- In the first room, there's a tile-sized "hole" in the wall at the bottom-right of the big table (you don't see it but you can go in the wall because of it)
- In the jail, The victory Fanfare plays (not sure if it's intended?)
- In the jail, Crono can walk on the torches near the stairs
- Crono's head passes under Roget's desk in the library, and you can't talk to him from the front
- If you're going left from the right side of the book shelves, you're blocked by something (apparently), but if you go right from the left side, you're not o_O
- In the patio, Crono passes under the signpost at the top left, and under or on the table (depending on each tile)
Cathedral:
- In the main chapel, you can walk ON the tip of the top-right bench (subtle one, compare with the other benches)
Porre Mayor's Manor:
- In Ishito's room, you can walk ON the wall to go downstairs instead of just using the stairs
Medina Auxiliary:
- The collision stuff is a bit weird around it on the world map
- (Cosmetic stuff) The Imp who mentions Ozzie VIII should have his textbox at the top of the screen, so as to not hide himself and Crono
- Northwest of it on the world map, the patch of forest is "cut off"
Forest Ruins:
- The treasure box should be empty no?
Medina Elder's House:
- The Bandeau/Elder Mitch textboxes should appear at the top of the screen
- Bandeau disappears while still in the room, instead of actually walking past the door
Medina Square:
- Just a small note, but if we are to replace a symbol with a "LA" merged for SCHALA's name (5-character restriction right?), it would probably be the heart symbol, so maybe that heart shouldn't be used in the singer's textbox
Guardia Forest:
- The Power Tab still appears (should it?)
Guardia Castle:
- The guards on the Square Table say a Lucca sentence
- The last room at the top of the left tower is messed up
- When the Porre emissaries walk from the stairs to the table, they walk IN the left wall
- Crono and co. disappear instead of actually walking the stairs
- Crono and the Porre emissary's animations are a bit hard to understand at first sight; maybe Crono should do an attack move and the emissary have a "dead" sprite instead of just kneeling down
Denadoro Mts:
- Crono's foot is slightly under the grass tile (more obvious when he enters the Gate)
- Crono gets bombed and doesn't even blink (Marle jumps though)
- (Cosmetic stuff) Lucca's text should disappear automatically (like Mitch's in the Bandeau cutscene) instead of waiting for the player to push the button
Cutscene with the old CT cast:
- Glenn's/the soldier's textbox should be at the top of the screen
- In Chronopolis, Crono and co. are on the screen before the Gate opens
- In the Magus scene, the Beast appears out of nowhere instead of appearing from the top of the screen (I know I already noted this detail many times above, but it's disturbing)
- Oh and, come on, let's normalize Glenn's speech :/
That's it... at least for now.