This is my first bullet hell and I understand why so many people love these things now. The concept is deceptively simple but after you get in to the game it becomes incredibly challenging to string together as many hits and rack up as many points as possible. At the same time its never enraging and dodging through the mesmerizing bullet patterns is actually very cathartic.
To solve slowdown issues go to options>other and disable Wait Control.
garbej about DoDonPachi Resurrection HD, v1.1.5