The Sonic Robo Blast 2 v2.0.4 patch, which addresses certain issues with network play. This patch is REQUIRED for online network play.
Note: This is an old version intended for archival purposes only. Please view the downloads page for more recent versions.
Simply download this and extract it to your Sonic Robo Blast 2 folder, overwriting the old srb2win.exe. The full Sonic Robo Blast 2 v2.0 download is required, if you don't have that already.