If you told me this show came out today, I'd believe you. Unfortunately i can already tell that this is a 90's anime cuz there's nothing like it nowadays
This kinda makes sense if you think about it. Gridman had a big influence on mecha anime and now it's got its own anime. On top of that, the creators said they wanted to make a show that felt like ones from their childhoods. Needless to say they nailed it