Dai-2-ji Super Robot Taisen

The long-rumoured srpg about crossovers between the various Big Battle Robots universes (by the way, in one of the games you can see Gandam, Grendizer and Evangelion together) has been around in Japan for a long time. This is the second game in the series. The gameplay is certainly tedious and drawn out, but fans of the series should give it a try.