minosSTH: It actually says "Team Member Inactive" for an empty space in your party; not for Sonny. When that space is filled, it will no longer say it.
kamikazoo: It shouldn't be too difficult to beat him if you time how many turns he waits between heals. Just make sure to use your Retrograde/Subversion after the correct number of turns each time.
00chrome00: That's a good idea, and it does seem to work, but I think my Hydraulic save file would feel safer at Armor Games, as long as the class is disabled here.
I'm confused... The game description states that Sonny 2, on Kongregate, has "3 UNIQUE Character classes", but... it doesn't, unless you DON'T play it on Kongregate.