>>12019612 (OP)
Nothing to choose from. The mecha game is only one.
The issue with japanese they do awesome anime dramas/psychology horrors etc. everything human, but just as much are incapable of anything machines. Any proper machines games are western: Battletech (SMD), Strike series (SMD), Armored Fist series, Mechwarrior, Shattered Steel etc.
And the most is Japanese are capable to do are stupid cardboard toy shooters such as ZOE, or absolutely godawful trash like Armored Core.