Using SLOW mode completely defeats the purpose of playing the game.... You're just taking advantage of a glitch in the code and cheating. Where's the fun in that?
"Where's the fun in that?"
...It's
Deep Blue we're talking about, so I think the answer to that question is obvious.
The only enjoyable (in my opinion) thing about that game is the opening music piece. Sometimes I'll load the chip, let it play, and then move on to something else.
But to address your point more legitimately, I have to say it's not my fault that the Slow feature regenerates life; I use Slow because I need to slow the game down to beat it. I feel a game is still righteously beaten if you used slow to do it.
Although I'm probably VERY alone in that opinion....