Shigeki (Japanese: シゲキ; Romaji: Shigeki; Bootleg: Bek) is the main protaganist of both Keitai Denjuu Telefang: Speed and Keitai Denjuu Telefang: Power.

His partner differs depending on the version. So far, the only appearence in Keitai Denjuu Telefang 2 was in Speed version at the end. However, this time, Dendel was the Denjuu he had.

The first Denjuu in Telefang 2, Rex, might be a reference to Crypto, the first Denjuu Shigeki got in the Power Version.

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