Since no one made a thread about this yet,I guess I will.
There are probably a lot of changes I probably overlooked, seein how I haven't played the original Rondo for a year. Also, maybe someone else could,but I think I should skip the added cutscenes since those are obvious. Anyway, the changes that caught my eye are:
The engine room on the ship. It is in the remake and now has a remake. Instead of the wall tiles being generic(the one you slip under as Maria,) this wall is now decorated; it now looks like a giant engine piece. The stairs at this section of the wall is still present. In the secret room,one of those rifle skeletons is there. also, *spoiler*
This is where one of the music piece is located at. Also, this room is partly covered in ice
*Another change is freeing Iris. Rather thanpressing down frog statues, you lead a blue frog to an empty stool. He then steps on it and the bridge opens.
*The females you save now give you a powerup to destroy something so that you can obtain a music cd.