Honest question, are these games any good? I never owned a Wii, had friends that did but I know they all talk about this. I just saw another motion controlled FPS so i have no clue what type of game it is.
The main draws are:
* Cool atmosphere where it really feels like you are alone on the planet, except for flora/fauna and the space pirates - but they are portrayed as a violent race who aren't really people you could "chat" with - this mostly applies to the first one, a bit less so in the second and not much in the third one
* Fantastic level/world design and lore through scanning the environment with your visor, it colour codes things so you know what the most important things are if you aren't a scanning-everything-in-the-room type of player
* Excellent enemy design, the flora/fauna seem like they could just be living in the world and not just existing for the player
* Satisfying upgrade system, almost every new thing gives makes a big change to how you both move around the world, engage with enemies and solve puzzles
* Great puzzle design thats satisfying to solve and not hand-holdy. Its not super hard or anything though, think Zelda-style puzzles.
* Hunting for secrets that mean you can take more damage from enemies/the environment and increase your offensive capabilities.
* Amazing music, in MP1 & 2 at least.
So as you could probably gather Metroid Prime 3 is not regarded as well as the first two entries, and I think most prefer the first over the second one overall. I like 1 and 2 just as much as each other and 3 was still a great game compared to other games.