So, you want to play a Shoot Em Up, do you? Well this game is definitely a good one to start with.
The game has four controls, plus 8-way movement. It's a side scroller, like the Gradius games, but it has no powerups. You use what the character you select has, as well as one of four alternate costumes which change their way of playing.
Music in this game is what you'd expect from a game from overseas; really good. It's not overbearing, and you can hear everything in the game without the music blocking anything. Plenty of different songs in each level, too.
Level design goes from Easy to moderate to a bit tough to really tough to "If you are not godlike, quit now" tough. Difficulty ramps up REALLY fast towards the third level, which is only 10~ minutes in. The fifth level is just incredibly brutal, and this isn't even a hard game. Consider it an entry to Bullet Hells, because this is only the tip.
A great game for beginners to learn the fear of Bullet Hell games. I'd like to think of myself as a fan of shooters, and I own a few on consoles, but Bullet Hells continue to make me realize that I haven't even begun playing hard games. Get this if you want an introductory to a challenging genre of games that actually takes some skill.