Tenkaichi 3 is hard to overcome

You are already playing some of the best picks, but allow me to info dump

• Dragon Ball Fusions (3DS) - Quite a unique game both in the fusion mechanic and the battle system. It's been a long time, so I may get some details mixed up, but I'll give it my best shot. There are many, MANY fusions. I believe there are preset fusions of a lot of characters, and eventually I think you can start going crazy with what ever characters you want. I think you collect characters through battle? Maybe story? I'm super hazy. The battle system is a bit weird. I think it was turn based. You basically shoot your character at the other, trying to get them to knock into each other or walls. It kind of reminds me of marbles, but they fight when they make contact. I had a good time with this one

• Dragon Ball Z Attack of the Saiyans (NDS) - A straight forward JRPG based on the Saiyan Saga. Worst part about this game is that it didn't receive any sequels

• Dragon Ball Sagas (Various, GCN, PS2?) - This might be a bit of a controversial pick. If you just want some mindless, beat-em-up action this one does just that. Don't expect any kind of real depth. It is repetitive, but I've played through it at least once and got enough entertainment out of it

• Dragon Ball FighterZ (All modern consoles and PC) - If you enjoy competitive fighting games, specifically the 2D anime fighters, this one is fantastic. You get to pick a team of 3 from quite a large cast. It plays kind kind of like Guilty Gear meets Marvel vs. Capcom. I put many, many hours into it across various platforms, but I really enjoy competitive fighting games. I just remembered you asked for old games. I'm going to go ahead and leave this here though

If I think of any more I'll come back and add them