Dynasty Warriors Gundam 1 and 2 are actually pretty good.
Zeonic Front is like an oldschool milsim approach to Gundam, but you’re playing as the Zekes in the OYW. Expect a lot of Zaku action and running away when Gundams show up.
MS Saga - A New Dawn is a JRPG with a story like Turn A Gundam, not directly related to any of the shows, except for the fact it uses only UC mobile suit designs.
Other than those, there’s some Japanese-only games, and all of the Versus type games, which are all pretty short but not too bad. They feel like arcade games. I didn’t play Journey to Jaburo but it shouldn’t be a bad one.