Metroid Prime 2: Echoes crash

[Shonumi]

Black screens on boot are usually signs of a bad dump of the game, though I'm not sure why your game would work sometimes and not work others. It's pretty easy to tell if your game was dumped correctly. You'll need to download a tool that generates MD5 hashes (google around, plenty of free ones are out there) and then compare your hash to that of a verified dump. Sites like GameTDB and Redump.org have extensive databases that you can check. If your hash matches theirs, the integrity of your dump isn't the problem. If they don't match, then you should redump your game until they do.