Well, it has a lot of flaws. For starters, it's way too difficult.
I've noticed. I actually had to use a cheat code to deal with Boss 3.

There were some pretty terrible design choices. Second, it uses all old ZOLE stuff so down the line it would become harder to work with.
Guess I understand.
Third, we don't like the overworld.
I actually kinda like it.

Fourth, our skills regarding assembly and programming have greatly improved. We could do everything a lot better.
That's always a +.