These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Complete Monster: Benoit Manderubrot. Callous, manipulative and sociopathic, Benoit ordered Jutah to slaughter innocent civilians while acting as his superior officer on Tarakhan. Then years later he betrays his penal squadron and the Dante's operators so he can murder the entire crew with biochemical monsters, hijack the whole ship and then use it to cruise around the cosmos, causing as much mayhem and carnage as possible. For one reason alone. Of course he also attempts to coax Jutah into joining him, knowing that he would be susceptible given the fact that Benoit destroyed his personality. And when he is denied the chance to use the Dante's Wave Motion Gun to destroy Hornet, he decides to crash the gargantuan vessel into the planet instead. Because he thinks it would look awesome.
Moral Event Horizon: Jutah crosses it during the prologue, and is permanently emotionally dead as a result. Complete with the screams of small children cut off by his explosions. Damn.
Narm Charm: The entire game. The fact that it takes itself so seriously yet is so hilariously overacted is a big part of it's appeal.
So Bad, It's Good: The plot and voice acting are at times incredibly hammy, but this just makes the experience as a whole even more like a fun late-eighties anime pastiche. Arguably it wouldn't be as fun without these elements.
That One Boss: The Blue Mist commander is quite tricky, but the battle with Benoit is merciless.