Is it worth the effort? For the average gamer, probably not. The rock-paper-scissors mechanics are primitive, the FMV is grainy and compressed compared to the source material, and the difficulty is artificially inflated. However, for the dedicated retro enthusiast, a collector of oddities, or a student of game design history, unlocking the secrets of Disc 2 offers a fascinating glimpse into an underground era of PlayStation history—a time when even the most unlikely games found a way to exist in the shadow of the black disc.
This game was not found on the standard shelves. You had to know the right person to ask, and the price was often than standard pirated PS1 games due to its scarcity and "adult" nature.
Yakyuken Special is not a good game. The Rock-Paper-Scissors engine is boring, the "rewards" are tame by modern internet standards (non-explicit gravure models), and the load times are horrific. However, as a historical artifact, it is fascinating.
The PS1 used a wobble-groove copy protection called LibCrypt (on many Japanese titles). Standard CD rippers would either skip bad sectors or misread the audio-video interleaving, resulting in frozen FMVs at round 3.
However, the game is notorious for its difficulty. The AI is aggressively rigged, giving the player less than a 50% chance of winning any given round, making a full "victory" an exercise in frustrating luck. As one reviewer sarcastically put it, the game is a "Sisyphus Simulator" for "horny Japanese people from 30 years ago," noting that the developers were ahead of their time in using aggressive RNG to tax the player.