It was a notorious moment to find a bunch of Capcom's 194x and Raiden ripoff/clone games on Google Play store. Some of the games had stolen assets from those games or whatnot like the ship looking similar, the firepower being quite similar as well as the sound effects. That's not cloning at times if you're trying to take those kinds of assets like that. To find an original shmup game on mobile that gives you pure arcade experience is a rare story. Aka to Blue/Red and Blue is one game that requires later versions of IOS and Android as it provides arcade and console gaming experience.
The game consists of 5 levels as well as two ships to choose from as stated from the game's title. The red man is kind of cool and badass like he sort of reminds you of Sol Badguy from Guilty Gear while the blue lady is seen being formal at times. It is a famous game due to professional developers involved in it. Plus, the music is all rock-style.
The gameplay is interesting in a way that you get to replenish the bomb-like defense quickly without having to traditionally collect the bomb item. It supersedes Dodonpachi Maximum in a way that you have multiple levels of bomb-like special attack but be warned, it's a hard game like other bullet hell shooters on mobile.