AIRPLANZ

AIRPLANZ is a 2 players - 1 Gameboy ROM written in Assembly.

How to play

For those familiar with Battleship, it's basically the same game, but with airplanes and slightly modified rules.

Each player has a 10x10 board on which they place 3 airplanes each like in this picture:

Then, the planes disappear (on _pen'n'paper_ version, use a new empty board) and you have to guess where the opponent's planes may be. That means you choose a cell (on _pen'n'paper_ version, they are labeled A1-J10, on Gameboy I didn't find this thing necessary) and the software (the opponent) tells you whether you missed, hit a plane part or its cockpit (in this situation, the whole plane is destroyed). Everything is illustrated below:

Note:

•  "X" = missed
• "O" = hit
• destroyed plane appears dotted

It's a 2 players - 1 console game, so you have to pass the Gameboy to your opponent each turn.

1.  Title screen appears. The first player presses `A` and the board will be loaded. Planes need to be moved (`D-pad`) or rotated (`Select`) such that no two planes overlap in the end. Press `A`,`B` to commute between airplanes.
2. When ready, press `Start`. Be careful, once you pressed it, you can no longer edit your board configuration, unless you hard reset the game.
3. A message will appear telling you to pass the Gameboy to the next player. Player 2 presses start and sets his/her board, then presses `Start` and passes Gameboy to Player 1.
4. Player 1 presses `Start` and opponent's board will be shown. Player 1 chooses a cell to attack, then presses `A`. Player 1 passes the Gameboy to Player 2, who does the same thing.
5.  Both player repeat the process until one player destroys all the 3 planes of the opponent.

(screenshot from Android emulator)

Playing in browser

• D-Pad : Arrows
• A : Z
• B : X
• Start : Enter / M
• Select : Shift / N

Credits

• GBDev community for their kindness and willingness to help uninitiated people like me in terms of GBz80 (or whatever want to call it)
• alexhulk2002 for his idea of one-Gameboy gameplay. If it wasn't for him, I'd still be looking for ways to make two Gameboys communicate through a link cable, as I originally planned this project would do.
• the anonymous hero who invented this game in its paper format
• Special thanks to Antonio Vivace for publishing the ROM on Homebrew Hub. As a matter of fact, AIRPLANZ is the lucky occupant of the 500th entry of the database 🎉

Linked

• visit HomebrewOwl.GB to check out my other Gameboy projects