Being my first Super Robot Wars game and first OG game, it was a lot of fun.

The biggest problem with the game is the garbage translation. The Original Generation series is pretty heavy with lore and references to previous games, and there's a keyword system that provides summaries and definitions for these terms when they come up. As this was marketed as an entry point to newcomers AND was the first OG game to be officially translated in English in years, this keyword system is undoubtedly a very important thing to have, but the translation sucks. Literal translations of weapon names and most lines not having ending periods at all make the story hard to follow.

Gameplay was fine. Animations are beautiful but SR points can be annoying and are dependent on RNG at times. Custom upgrade bonuses for units also being unlocked when maxing out their stats feel unfair to me, as upgrade costs get expensive the higher you go, and in the early-game this is especially troublesome when many upgrade bonuses are simple QOL changes that make some units much better to use.

The best parts are, as usual for Lego games, the voice acting and amount of characters you can unlock and play as, and with something like Marvel there's a lot of weird characters (I especially was surprised to see characters like Hit Monkey and Forbush Man)
The bad parts are kinda everything else. Story-wise, it's not as fun as the first Lego Marvel. The time-travel part of it is fun but a lot of the guest characters only appear for one level.

The open world feels much larger with more collectibles, more races and more sidequests but the races are honestly awful. Controlling vehicles is clunky, and when every race requires you to drive through ring checkpoint with a time limit between each while also making sure to complete the entire race under a certain time and earn a gold medal to unlock the character or other thing, it's frustrating to play. Not to mention that races are locked to specific vehicles, which you unlock by destroying or collecting other things around the world like rings of birds/fish or spores hanging on the side of walls.