Making this game for the DS was a huge mistake, the controls just dont work, no auto locking making the game more frustrating than it needs to be, hand cramping is very real especially if you use original hardware like me.
This game supports the rumble pak, and playing this game on the first model of DS was nice, each time you get damage you feel the rumble working, but what's most impressive is the rumble enhancment of the cgi cutscenes when there are big explosions, so this is cool.
Overall I had a very bad time with the game, copy pasted areas, only 2 normal bosses copy pasted 4 times each.
Final boss was a breath of fresh air with his 2 phases if you go for the true ending, best thing about him is that you dont need to run away with a timer, something you do after each boss and that too is one of the terrible decisions the devs decided to implement, the runaway sequences with a set timer.
The hunters were just there with their bad AI, if you get defeated by them while figuring out the terrible controls, they steal your octolith so you need to defeat them to retrieve it, so that's... cool I guess?
I dont recommend playing this game, its a novel thing having a metroid "kinda" prime game on a ds, but nothing more than this, they shouldnt have made this game for the DS in the first place.