Originally this game was mainly used to show the possibilities of the new SH-3 drivers of the publisher (CAVE). Out came what for me is THE reference Shoots'em up (vertical shoots). Totally addictive game that never ceases to push yourself to reach your limits. In this port XBOX 360 you have the opportunity to play in "Arcade" which gives a graphic identical to the original PCB and Xbox 360 Mode with updated graphics. Personally I only play in "Normal" mode but it also has a way to "Arrange" that will soon have fun with a more permissive gaming system especially based on scoring. Do not hesitate to go on different forums or tutorials will explain clearly the scoring system. This game is a must. Cordially