I did not know there was a thread for this.
Well, give me Stick Stickly, the Dancing lobsters, Jimmy, Steve and Blue, and some are you afraid of the dark representation please.
I don't think AGU is the only solution to the Rugrats dilemma - I've already mentioned the Reptar Wagon a few times, but another alternative could be having Stu and Tommy as a tag team fighter a la Duck Hunt, with Tommy in a carrier.
Honestly, Stu, Hugh, and Timmy’s dad are all iconic enough to be standalone fighters imo.
Especially Stu. He’s an inventor they could go wild with that moveset. Having the Reptar wagon as a side special would be sweet.
Or the Pterodactyl wings as a recovery.