Luchsen is right, I can't play it in dosbox.
I've just tried a game speed adjuster, and it still moved the text still moved at warp 100000 at min. speed, even with the in-game speed at min.
Apprantly I'm not the only one with this problem.
And about Agent Katt, the reason why I say it's unbeatable is because the game has a ton of glitches, makes LHDIII look like a perfect game.
EDIT:Turns out that said game speed adjuster doesn't work.