Monstercat

Rare

Going Quantum x Psychic Type

Monstercat

10%

Web App ยท 2026

Bey X Builder

A Beyblade X combo randomizer, gacha simulator, tournament ladder, and versus builder.

In Development
FlutterDart
Web
Supabase
Launch buildRuns right here, nothing to install.

About

A Flutter web app for Beyblade X fans that builds full combos (Blade + Ratchet + Bit) from three fair spinners, with weighted-gacha odds shown live and the fair-pick code visible as it runs. Each built combo gets a five-axis radar chart (Attack, Defense, Stamina, Dash, Burst Resistance) plus a per-part stat breakdown.

Modes include a uniform Randomizer, a party-simulation Gacha that pops combos already pulled in the session, a server-verified Token mode, and a 1v1 Versus builder where each contender's parts are removed from the pool once confirmed. Also includes a single-elimination tournament ladder with save/resume and image export, and a random VS selector. Built with BLoC state management and Clean Architecture.

No account required; progress is saved in the browser.

Features

  • Three-spinner combo builder (wheels or slot reels)
  • Randomizer, Gacha (party pop), Token, and Versus modes
  • Five-axis radar chart per combo with per-part stats
  • Versus: confirm-to-lock parts, exclusive per contender
  • Single-elimination tournament ladder with byes
  • Save/resume tournaments and export the bracket as an image
  • Live fair-pick code, tappable to open full detail on any device
  • No account required; progress stored in your browser

Stack

  • Flutter web with BLoC/Cubit state management
  • Clean Architecture per feature (domain / data / presentation)
  • Supabase Edge Functions + Ed25519-signed receipts for Token mode
  • Browser localStorage persistence with a global reset

No account required. Progress is stored only in your browser. Token mode (in development) will record IP and coarse location for server-verified spins.