gameboy retro mon catcher game prompt

gameboy.txt

Implement a retro web game inspired by Pokémon Red.

Include a demo playground map, with:
- a shop that you can enter and exit
- a small grass area that you can step into and encounter monsters
- an NPC that you can talk to

LAYOUT AND GRAPHICS:

The screen resolution must be natively 160x144, scaled up 4x for rendering, with
16x16 tiles. Graphics must be pixelated and follow a GBC-like palette. The
position and layout must be highly inspired by the original game.

MAP SCREEN:

The map must be tile-based, with a movement system where the character walks
from a tile to another *smoothy*. Pressing A/W/S/D triggers movements. The
character must face a direction. When a monster is encountered, there must be a
transition from the map screen to the battle screen. When a door is entered, a
small transition animation appears, and the user is moved to inside/outside.
Inside the shop, there is an NPC you can talk to and buy items, including
Potion and CatchBall. The player has infinite money for now.

BATTLE SCREEN:

The battle screen must include the opposing monster sprite (front-facing), and
the player monster sprite (back-facing), their names/levels/HP-bars, and a
battle menu at the dialog window on the bottom of the screen, with options:
- FIGHT
- PARTY
- ITEM
- RUN

The FIGHT option allows the user to pick a move. A turn then takes place:
→ fastest mon uses an attack, affecting the other mon (update HP, etc.)
→ slowest mon uses an attack, affecting the other mon (update HP, etc.)
→ back to the original battle screen
Include dialog messages narrating each event.
Include attack and smooth HP bar animations.

the PARTY option allows the user to switch a mon available on their party.

The ITEM option allows the user to pick an ITEM available on their bag.
- Initially, include: Potion / CatchBall.

The RUN option allows the user to attempt to escape the battle.

Be careful not to overlap any text.

MENU:

When the user presses L (start) on the MAP SCREEN, the MENU shows up, with:
- DEX: shows all seen mons
- PARTY: shows the party (6 mons total, with 1 selected)
- ITEM: shows the bag (initially, Potion / CatchBall)
- OPTION: simple configs
- EXIT: leaves the menu

SOUND AND MUSIC:

Include 3 soundtracks:
- initial town
- shop interior
- battle music
Each music must be playing on the corresponding screen.

Include some sound effects for moves, attacks, presses).

KEY BINDINGS:

The J key should operate as gameboy A, allowing you to select things and do actions.
The K key should operate as gameboy B, allowing you to navigate out.
The L key should operate as gameboy start (launches the menu).
The A/S/W/D keys should be used for movement.

No other key should have any effect.

IMPORTANT: MAKE IT COMPLETE. DON'T IGNORE ANY ITEM ON THIS SPEC.

The game must be titled: "MonCatcher".

The output must be a self-contained HTML file.