What I would improve in the next Metroid game. Not all of them are important.
-----HELMET-----
1. Rain- In MP, it hits the screen straight, like the visor wasn't there. However, it should wrap around the viewscreen more, and leave streak effects.
2. Cracks- The 'Game Over' screen gave me this idea. What if, so to say, at 10% health left, cracks started appearing around the edges of your visor? After being hit by x infinity fireballs, *surely* some wear and tear must take place. At 5% health left, cracks start splintering across the main portion of the screen. Should you get to a Save Station, it would 'heal' most of the smaller cracks. (Those lasers gotta do *something*) To get rid of the larger ones, a return to the Gunship would be in order to replace the visor fully.
Should this be carried to the extreme, there would be different levels of cracks. The smaller ones would be on top and easily healed by the Save Stations, while larger ones would reach down farther, and prehaps even split off a piece of visor. If a visor peice was chipped off and Samus went underwater, the water would pour in and give her a time limit as to how long she could stay under. Of course, the Gravity Suit would never crack.
Again, carried to the extreme.
3. 'Condensation'- The condensation effects were a tad underwhelming, since a generic breath pattern emerged every time. Random, maybe?
-----ENVIORNMENT-----
1. More Wind- Our only glimpse of wind in Metroid Prime is the room leading to Chozo Plaza. Blowing sand, snow, dust-anything more would be nice. Also would affect the rain.
2. Footprints- Samus doesn't leave foot prints in the snow. A minor quibble but one nonetheless.
3. Higher elevations. Metroid Prime seemed like you were buried in canyons in Phendrana, Magmoor, (well...) Chozo Ruins, and the overworld. I really wanted to go to the top of a Windmill Tower, like the one in Phendrana Canyon. Looking around the terrain, seeing Quarantine Cave...Anyway.
4. "AI"- The Flying Pirates were pretty stupid. Make them hide behind buildings and such, instead of idly waiting for me to switch to the Plasma Cannon and blow the crap out of them.
5. Nature's cycle at work- More Metroids sucking the life out of Space Pirates!
6. Some sort of bump-mapping- 'nuff said
Well, that's what I can think of. Anyone else?