Mecha Heaven
On its own, Super Robot Wars T is an extremely solid game, and perfectly showcases just what makes this series so amazing. If you've never played a Super Robot Wars game before, you're in for a treat. All these different series are woven together into one single, coherent plot, where all the different characters interact and play off each other. I've never watched most of the series in this game before I played (Even Cowboy Bebop!), but Super Robot Wars makes an excellent introduction to all these series and mecha as a whole. You can actually read information about the series in-game, in the middle of cutscenes, so you'll never be blindsided by new characters or terms. While gameplay may be simple, it's a difficult challenge to earn all the bonuses within each stage, and every single unit gets its own battle theme and unique, over-the-top attack animations. Super Robot Wars is an amazing tribute to mecha, and Super Robot Wars T, while not as groundbreaking as the Alpha or Z sagas, is still a great game in its own right, and probably the best of the international games so far.
Keep in mind there's a few small differences between the Switch and PS4 versions. I prefer the Switch version because it's portable, and I can't use my PS4 anymore, but you can actually upload and customize your music with any song you want in the PS4 version, but not the Switch version. Also, I've heard that the eShop DLC is difficult to access in the Asian-English version for some reason.