the time limit is annoying,
The first Castlevanias had time limit (with exceptions). There's plenty of time to visit all the rooms,
and killed time penalty keeps things more challenging than if there wasn't a timer.
I would of preferred a rule where players would have to eliminate all of the enemies in the map before they can enter the boss room instead of a timer, but most people are used to the timer, and it does encourage more caution and teamwork.

the healing system is too
What's hard about pressing two buttons? Oh you might be too used to a tray always available full of potions, food and other items you collected to heal yourself? That's too easy and would blow a part of the point of teamwork and higher survival skills.

graphics are crap and it feels like a quick cash in.
Any pure Castlevania fan would appreciate the graphics, I mean, these graphics are pretty much what people have grown accustomed to over the past years of Castlevania. They really don't age.
