Mix bad aesthetics with tedious button mashing, and you have Gauntlet: Dark Legacy. End review. Roll credits.
Well, I suppose I'll say a few more words, but it's out of obligation. Not that this game deserves any more than a one line review, seeing as that's about all the time that went into brainstorming sessions, level design, etc. Gauntlet ain't exactly rocket science. Nor is it microbiology. You see something, you kill it, you repeat. In short, you hit the same button over and over and over and (cuts and pastes "over" 300,000 times for effect.)
Along the way, you get keys, gold, and food. You get stronger.
But don't let any of that fool you into thinking that Gauntlet is any deeper than, say, Contra. It isn't. And at least Contra had good level design! Gauntlet's handheld battlefields aren't so much "levels" as they are "spaces with enemies within." Which would be ok, given the fact that it's an unwritten law of the gamer code that mindless button mashing can be fun, assuming there are other gamers present to assist in said mashing. We call this concept "multiplayer", and Gauntlet lacks it. Any remaining will you had to buy this game should have just gone down the toilet. With hack and slash games on the GBA reaching mini-diablo levels, (LOTR two towers,) there's no feasible reason to reward mediocrity with a purchase.
-George