Okay, I need to create a brick-breaker game using Phaser.js, but without any external assets. The user mentioned using the pre-provided phaser.min.js, so I should make sure that's included. The game needs a paddle controlled by arrow keys or mouse, a bouncing ball, bricks that break, and a score system. All graphics must be generated procedurally with Phaser's Graphics API.

First, I'll start by setting up the basic structure of the HTML file. I'll include the Phaser script and then add a script tag for the game code. Since the user wants everything in one file, I'll put all the CSS and JS inside the HTML.

For the game configuration, I'll set up the canvas size. Maybe 800x600 pixels. Then, in the preload function, I don't need to load any assets, so I can skip that. The create function will handle setting up the paddle, ball, bricks, and score.

The paddle can be a rectangle. I'll use Phaser's Graphics API to draw it. The paddle should be controlled by the arrow keys. I'll add keyboard event listeners for left and right arrows. Also, maybe allow mouse control by moving the paddle with the mouse cursor.

The ball will be another circle. I'll need to handle its movement with velocity. When the ball hits the paddle, it should bounce. Also, collision detection with the walls and bricks.

For the bricks, I'll generate them in a grid. Each brick is a rectangle. When the ball hits a brick, it should disappear and the score increases. I'll need to check for collisions between the ball and each brick.

The score will be a text display. I'll update it whenever a brick is destroyed.

I need to make sure all graphics are created using Phaser's Graphics methods. No images or textures from external sources. So, the paddle, ball, and bricks are all drawn with fillStyle and fillRect or fillCircle.

Testing the game logic: the ball starts moving, bounces off walls, paddle, and bricks. When all bricks are gone, maybe a game over message. Also, handling the ball going out of bounds, which would end the game.

Putting it all together in the HTML file. The script tag will have the Phaser game code. I'll structure the code with the game configuration, create, update functions, and all the necessary variables.

Wait, the user said to use the existing phaser.min.js, so I should include it with a script tag. Then, the game code in another script tag. Make sure the HTML is self-contained.

I need to check for any possible errors. For example, ensuring that the paddle doesn't move outside the screen. Also, the ball's velocity should be adjusted on collisions. The bricks should be arranged in a grid, maybe 10 columns and 5 rows, with some spacing.

Implementing the score: a variable that increments each time a brick is hit. Displaying it with a text object.

Testing the code in my mind: when the game starts, the ball is moving. The player moves the paddle, hits the ball, which bounces off the bricks. Each brick destroyed adds to the score. If the ball falls below the paddle, the game ends.

I think that's the plan. Now, write the code accordingly, making sure all elements are created with Phaser's Graphics API and no external assets are used.

Okay, I need to check if the user's request was fully satisfied. They wanted a brick-breaker game using Phaser.js with no external assets, all in one HTML file. The code I wrote includes Phaser via a script tag, and all graphics are generated with Phaser's Graphics API. The game has a paddle, ball, bricks, score, and uses arrow keys and mouse for control.

Wait, in the code, the paddle is a rectangle drawn with fillRect, the ball is a circle with fillCircle, and bricks are rectangles. No images or external assets. The physics are handled with Arcade Physics, which is part of Phaser. The score is updated when bricks are destroyed. The game restarts when all bricks are gone or the ball falls off.

I should make sure that the code doesn't have any syntax errors. The variables are properly declared, and the functions are correctly structured. The paddle's movement is handled by both keyboard and mouse input. The collision detection between ball and paddle, and ball and bricks, is set up with the physics collider.

Also, the HTML structure is correct with the script tags. The user mentioned not to create separate CSS/JS files, which is handled here. The phaser.min.js is loaded as specified. The game is self-contained, so it should work in a sandboxed environment without network access.

I think this meets all the requirements. The user can open index.html, and it should run the game as described.