My jaw hit the ground when I saw this available at gog.com. A completely unexpected surprise. This collection of Raiden titles is by far one of the best I have played. Each game plays impeccably well in this PC version and the HD soundtrack really gets the heart pounding. I am playing this using a wireless Xbox 360 gamepad (the gamepad option is available via the in-game menu) and the movement is very accurate. The only thing that seems to be missing (or perhaps I just haven't found the right key) is the option to add more lives once you run out. Not a bad thing but a little odd. Perhaps someone will be kind enough to clarify. It's a great collection and once you power-up your laser lasso you'll be hooked. If you like shmups you've got to get this collection.
