evg2000... I experienced issues with my Penguin Adventure cart and reported them shortly after it's release. I was using a heavily modded Yurkie CV system (Composite A/V mod, fire-button skip BIOS, most (or was it all) chips on the CV board socketed, modern power transformer mod) with the Opcode SGM and everytime the game would reset after going into demo mode or before I could start a game.
I tried it on an unmodded CV with the Opcode SGM and an ADAM with Opcode SGM and IT WORKED flawlessly.
Eventually, I tried again on my Yurkie modded CV and stumbled across a way to get it to work.... I had to press down and hold pressure on the top of the Penguin Adventure cartridge for the game to play correctly.
I always left my AtariMax Ultimate SD Cartridge plugged in on this Yurkie CV so perhaps the tension on the cartridge connector has loosened. All my other CV cartridges (old and new) work fine on this Yurkie CV, so the issue has to lie somewhere with the Penguin Adventure cartridge PCB contacts and cartridge connectors on the CV motherboard that are worn just enough to cause a problem.
I've experienced issues dumping all the latest CollectorVision games with the AtariMax MaxFlash Cart Dumper as well and finally stumbled upon a solution... I have to favor one side (left when looking at the cartridge to dump) when inserting into the MaxFlash Cart. If I install the cart to dump straight in as it normally lines up, I experience problems and get a bad dump.
So, to make a long story short, your P.A. cart may actually be fine, but the contacts aren't lining up exactly where they need to be for the game to play correctly. Mine was a simple remedy after thinking it was so many other things at first.
I'll have to test out my P.A. cart with the Juicebox SGM to see if I have to keep constant pressure on the top of the cartridge for it to play on my Yurkie CV. Seeing as that idiot will never release Berzerk like he planned, it'd be nice to have a use for it besides listening to the voice with his test utility.