Obviously

One of the best shooting game ever made in Japan, now on our hand hold!
As you might know already, this is a danmaku (curtain of bullets) shooting. It suppose to be hard.

Let me tell you couple great thing about this game.
1, daioujou costs heck of a lot of money to buy for PS2 or Xbox! And this one is only under $10! Great deal
2, while daifukkatsu was great, this one is something special. Unlike daifukkatsu, this one has more classic style. The real arcade feeling.
3. Still the same sound track which I love the most. Boss music is great!
4. Control has no issues. Smooth and fast (well on iOS5 iPod Touch 4G that is)
5. Good replay value. It is notoriously hard to reach second loop to see the real final boss (if you want to know just search it on web. No Spoiler!)

Since I have seen millions of people who doesnt understand arcade game, let me say it in first place. You might say "it needs more ship!" or "game is too short!!". Remember, THIS IS ARCADE GAME. Have you ever seen a arcade that last as much as console and makes people line up to wait for player to be done for hours and hours? No. Have you ever seen a arcade game that has millions of weapon that you need to choose from 60 seconds? No.

My arcade game definition: simplicity, and addiction. Does this game fit my definition?
Hell, yes.

Akira Houjou about DoDonPachi Blissful Death