Betta Brawler

Betta fish don't share a tank. That's the whole premise. 

Eight siamese fighting fish settle it the old-fashioned way — flared gills, torn fins, and a spinning tail through the jaw. 

Every fighter is a real betta variety drawn to its actual anatomy: Buster the plakat brawls up close with a notch bitten out of his dorsal, Lance the crowntail keeps you at spear's length, Peanut the elephant ear throws you across the dohyo, and Cosmo the galaxy koi never lets you get near him at all.

Land hits to build FLARE, then spend it on an ultimate. Tap guard at the exact moment a hit connects to parry and stun your opponent. Repeat a move too often and it stops hurting — mix it up or get read.

FIVE MODES

• Single player vs CPU across four difficulties
• Two player on one keyboard
• Tournament — fight all seven challengers
• Survival — one life, one health bar, eight opponents
• Training — a dummy that blocks, spars, or just stands there

CONTROLS

Arrows swim · C light · X heavy · Z guard

Two player — P1: WASD, F, G, H · P2: Arrows, comma, period, slash

Specials: ← → + light · ↓ → + heavy · → → + light and heavy for the ultimate

Runs in the browser with no downloads and no accounts. Everything you see and hear is generated in code — the art, the eight arenas, and all the music.

Works offline once loaded.

© 2026 Plumb Line Games

On AI: This game was built in collaboration with an AI assistant, which wrote the code, the graphics, the sound synthesis and the written text. There are no image, audio or font files in the project — every graphic is drawn with canvas commands and every sound is synthesized at runtime, so the "AI graphics" and "AI sounds" tags refer to code that draws and synthesizes, not to generated images or recordings. The design decisions and corrections throughout were human-led.