It’s — that would be Beta 1.3.0.2 (2023), with more characters, stages, and proper rollback netcode.
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If a website asks you to pay for a "premium download" of SSF2 0.9b, you are being scammed. It’s — that would be Beta 1
Relive the Legend: Super Smash Flash 2 v0.9b Download and Overview Super Smash Flash 2 (SSF2) with more characters
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