Well if that's your only game you really need a second game to figure out where your problem is.
I...did what everyone recommended for glitches like cleaning the card slot and it did not help but it did make some of my other games run a lot better.
Durrr.
what region is your game?
You can infer US likely, he would've used "PC Genjin" if it was a Japanese HuCard (not Bonk's Adventure).
Anyway, I'm guessing your other games that work are US too (you're using a TG-16, right?), so if that's the case, you might just have a bad HuCard here. They do break... E.g. The TurboExpress I bought in the 90's had very tight contact pins out-of-the-box, and sadly, the first HuCard I tried was "Bloody Wolf" and it wound up breaking it. Really had to force it in the first time and then it wouldn't load, so I'd pull it out and keep trying until finally giving up. Then I tried another HuCard and it worked, which led to an 'uh-oh' moment realizing that there was now a problem with the HuCard itself, and not the unit... So I tried loading it on my TG-16 system, and nothing (I had zero problems with it on my TG-16 before this mishap)... Thus the initial, excess tightness of the contact pins had destroyed it... The End.
Well, if you cleaned the contact brass really well and all the other HuCards work, chances are you bought a bad one... Although, sounds like you got a flaky unit or something, saying that your other games "run a lot better" after cleaning the card slot, so I'm not certain either way. Do you mean they now load instantly, the first time, without having to reinsert the HuCard repeatedly to eventually get it to load ??