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https://github.com/martendo/cookie-shooter-gb

A Game Boy arcade shooter game!
https://github.com/martendo/cookie-shooter-gb

assembly game gameboy gbdev shooter

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A Game Boy arcade shooter game!

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README 

        
# Cookie Shooter GB

A Game Boy arcade shooter game!



![Screenshot of gameplay](screenshots/cookie-shooter-gb.png)



Based on Cookie Shooter, one of the first games I've made.



## Building

Requirements:

- [RGBDS](https://github.com/gbdev/rgbds) v0.5.0 or later

- [SuperFamiconv](https://github.com/Optiroc/SuperFamiconv) `f4b4254` or later

- GNU Make



Run `make` in the root directory of the repository to produce `bin/cookie-shooter.gb`, along with its map and symbol files.



## Attribution

### GBSoundSystem

This game uses a slightly modified version of [GBSoundSystem](https://github.com/BlitterObjectBob/GBSoundSystem) to play its music and sound effects.



GBSoundSystem and the modifications made to it as part of this project are licensed under the MIT License, which can be found in [LICENSE](LICENSE).



# The Game



## How to Play

You're a spaceship flying through space with cookies coming at you!



Use the left and right buttons on the D-Pad to move.

Press the A button to shoot a laser and get points for blasting a cookie.

Try not to get hit by the cookies, though; once you run out of lives, it's game over!



The smaller the cookie, the more points you get for hitting it — 25, 50, 75, 100, or 125 points.



As your score climbs, the game gets harder: more and more cookies will be on screen at once!



## Actions

The action selection screen will appear after the title screen.

You can choose whether you want to play a game ("Play") or just to view your top scores ("Top Scores").



You will see the game mode selection screen after selecting one of the actions.



## Game Modes

There are 2 game modes: Classic and Super.



The game mode selection screen will appear after the action selection screen.

From there, you can select the game mode you want to play or view top scores for.



### Classic Mode

The original Cookie Shooter, plain and simple.



![Screenshot of gameplay in Classic mode](screenshots/classic-mode.png)



You shoot, hit cookies, and get points.

You get hit, you lose a life.

Lose all 3 lives, and the game is over.



### Super Mode

A fancy new way to play with power-ups!



![Screenshot of gameplay in Super mode](screenshots/super-mode.png)



All the fun of Classic Cookie Shooter, plus 5 power-ups, usable with the B button.



You can hold a maximum of 3 power-ups at a time, and out of those 3, you can select one to use with the up/down buttons.

When used, they override any currently in-use power-up, except for a couple of them which are "immediate": the Bomb and Extra Life immediately change things, and leave the current power-up in use.



Power-ups are given to you once your score passes a multiple of their point rates. The following table lists all power-ups in the game with their effects and their point rates.



  

    

      Power-Up

      Point Rate

      Effect

    

  

  

    

      Fast Lasers

      4 000 points

      Speeds up all lasers for 15 seconds

    

    

      Bomb

      5 000 points

      Clears the screen of all cookies

    

    

      Slow Cookies

      7 000 points

      Slows down all cookies to half speed for 15 seconds

    

    

      Double Lasers

      9 000 points

      The spaceship will shoot 2 lasers at once for 20 seconds

    

    

      Extra Life

      10 000 points

      A life is added to your remaining lives

    

  



## Game Over!

After losing all of your lives, the game will end. You will be shown the top scores, and if you made it to the top, a little "NEW" sticker will be shown next to your new top score.



![Screenshot of top scores screen](screenshots/top-scores.png)



## Pause

While in-game, pressing START will pause the game. The "paused" strip will appear on-screen when paused:



![Screenshot of a paused game](screenshots/paused.png)



From there, the game can be unpaused by pressing START again, or you can quit the game by pressing START with SELECT held down.

Quitting the game will send you back to the mode select screen.



## In-Game Controls



  

    

      Button

      Function

    

  

  

    

      Left/Right

      Move spaceship

    

    

      A

      Shoot laser

    

    

      START

      Pause/Resume game

    

    

      SELECT+START

      Quit game (only when paused)

    

  



### Super Mode-Specific Controls



  

    

      Button

      Function

    

  

  

    

      Up/Down

      Change power-up selection

    

    

      B

      Use power-up