1 source 11m ago
Developer Reverse-Engineers Beyblade X Battle Pass And Builds DiZZi App
Simone Marzulli, a developer in Ireland, decoded the Bluetooth traffic of Takara Tomy's BX-09 Bey Battle Pass and published the captured data alongside a working app.
Reporting from 1 source: GIGAZINE.
Why it matters
The pass's shot data can be read without the official app, and Marzulli published both the traffic and the code for anyone who wants to build on it.
Key Facts
- Simone Marzulli, a developer in Ireland, decoded the Bluetooth traffic of Takara Tomy's BX-09 Bey Battle Pass without opening the device.
- Marzulli read launch speed as a little-endian value, turning the bytes a2 0c into 3234 RPM.
- The custom app, DiZZi 0.2, runs the Gemma 3 1B model and Kokoro TTS locally to comment on each launch.
- Source code and captured data are published on GitHub under syxanash/DiZZi.
The pass clips onto a Beyblade X launcher and records launch speed, normally read through the official smartphone app. Marzulli avoided opening the device, working from outside observation and packet logs instead. His app, DiZZi 0.2, reads the same numbers and has a local AI model comment on each launch.
The BX-09 sits over two openings on the launcher. A black and white disc spins with the ripcord and the pass reads its speed, while a small white lever detects that a bey is seated. Marzulli judged the sensor was infrared by pointing a phone's front camera at it. Pairing exposes the device as BEYBLADE_TOOL01, and its history holds 50 shots; the 51st drops the oldest entry while a separate counter tracks total launches. The LED blinks in an unusual pattern when a record falls. He bought the pass from Japan and worked from Bluetooth logs rather than opening it, then published the data and source code on GitHub under syxanash/DiZZi.
Written with AI by Yomimono from the 1 cited source below, including Japanese-language reporting where cited. See our editorial policy.
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