Hoping the return of the Mighty Dark brain in OG3. BTW R-gun rival is also a hard boss. It is the first unit in SRW series that surpassed 100k HP. It also got distortion field which makes it 2 times harder to be defeated.
@Gaiden was favorite SRW back in the day, it's one of the more challenging SRW you can find. It's very easy to miss this cuz of the fairly stiff Skill Points requirement. It's also the first SRW to have Cybuster awakened Its Possession ability before it got its new form years later. Shuu here is way harder than his OGGaiden. Shame. Dark Brain takes the case for my most favorite boss in SRW series. He's super tough (especially unprepared) even when your teams have a lot of OP units. Did I mention his stage start with 5 or 6 Guardians each with 220k+ hp? Lol
