Sonic Robo-Blast 2 (Cancelled 2D game) : Sonic Team Jr. : Free Download, Borrow, and Streaming : Internet Archive

Sonic Robo-Blast 2, prior to the 3D final game, was originally a sequel to the original 2D game.

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Sonic Robo Blast 2 – Official Website

Not-so-Super Sonic 2 : MainMemory : Free Download, Borrow, and Streaming : Internet Archive

Sonic Robo Blast 2 Download (1998 Arcade action Game)

Godzilla Wikizilla, the kaiju encyclopedia

nintendo Polygons and Pixels

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Sonic Robo-Blast 2 Halloween : Sonic Team Jr. : Free Download, Borrow, and Streaming : Internet Archive

Open Assets] - SRB2 Uncapped - Updates