* AmericansHateTingle: While the series is very successful in Germany, in overseas has received very polarizing reviews varying from average to mediocre.
* SugarWiki/AwesomeMusic:
** [[https://www.youtube.com/watch?v=yDIS_y4Fh_U The theme of the Order Mercenaries]] from ''Aquanox 2'', the BigBad's personal army, is an oppressive, menacing track with heavy percussion that emphasizes the sheer threat their expensive ships and deadly weaponry poses.
** "[[https://www.youtube.com/watch?v=rNVtqsDLkmk Hektik]]", "[[https://www.youtube.com/watch?v=hkXWStr9vyI Darkness]]" and "[[https://www.youtube.com/watch?v=mhkfrGoP5-8 Pursuit]]" are all pulse-pounding metal tracks for some of ''Aquanox 2''[='=]s intense battles.
* ThatOneLevel: The third mission in ''Aquanox 2'' is a steep DifficultySpike compared to the fairly simple prior two and quite a few that come after. The larger Crawler subs can kill you extremely easily and there is a sniper's nest you need to clear out before you have to fight them. The fact that it's an EscortMission makes it worse, since dying means you'll have to spend a long time waiting for Dr. Finch to slowly get through the canyon before you can have another attempt. This is also the first level to feature ''four'' side objectives, which can result in you already being worn out by the time you get to the showdown at the end.