Just a bit of spamming. I would suspect.
I too have both, BH needs restore/repair. KISS is fully restored and plays like new, very fast. I really enjoy playing it. Wouldn't call it "lame", rather "fun and fast". One of the better 70s Solid State Machines.
But i do agree, Black Hole is classic 80s machine. Great concept , lower playfield. I would rate it very high in the solid state rankings.
