* Unlocks are easier to get most of the time, but can't be quick unlocked via cheatcodes.
* there's a bigger difference in move-set per weapon.
* Umbran Climax is added, think Devil Trigger.
* Magic no longer drains when hit.
* Pulleys Butterfly now also constantly drains magic.
* Enemies no longer do surprise attacks at the start of a fight.
* Certain enemies will attack you in a cutscenes, if you press dodge at that point you'll start the fight with an extended Witch Time.
* Requirements for PP seem to be a lot higher and more tight.
* You can't reset to title-screen when you're looking at your ranking, so you can more easily screw up your rank.
* More costumes, like..a lot more.
* 'Serious Mode' from Bayo1 is gone during bosses.
* Few new abilities are added such as Charge Shots and a sort of Shoryuken move.
* Default Control scheme was changed, no idea why. Type B is the controls from the first game.
* Dodge animation was changed a bit.
* With the exception of truly broken setups that disallow rankings (Rosa + Climax Brace + Climax Brace 2), there isn't a big ultra move that kills everything in seconds.
* Online Co-op is now added where you can play as two male characters (Lumen Sage and Rodin).
* There's a lot less 'other stuff' when it comes to gameplay. The driving section is only a minute long and the flying section is a lot shorter as well.
* Levels are bigger with more room to explore.
* Lot more enemy types from what I'm noticing.
* Highest difficulty setting does NOT disable Witch Time
*The window to activate Witch Time is much more generous but it's balanced out by being slightly
shorter than the first and there are stricter PP requirements.