Gurafi, Noizu and Frenzy (a.k.a. Rumble) come in this Transformers 3 pack of cassettes from Hasbro Pulse. Captain Kyle reviews each cassette, plus the merged form of Decibel. A great way to get Japanese exclusive Transformers!
Gurafi and Noizu are two of the four W Cassettebots from Japan, who were released as part of their Headmasters series and were part of Twincast’s cassette squad. Twincast used to be Blaster before a final battle with Soundwave, who was rebuilt into Soundblaster. These Dino Cassettes come in US G1 style packaging with all their accessories and have G1 Transformer style tech specs on the back of the package. They were actually known in Japan as Graphy and Noise, but those names are hard to trademark. The Frenzy, or Rumble if you prefer to stick to the cartoon colors, is slightly different than the Walmart reissue and will be compared to it.
This three pack is available at Hasbro Pulse at https://hasbropulse.com/products/transformers-vintage-g1-mini-cassettes-3-pack-gurafi-noizu-decepticon-frenzy