First things first, the Graphics. Pokémon Emerald (and several of its GBA counterparts) have been noted that they boast fine graphics for that era. This game takes Emerald's graphics engine and uses it in its own finely crafted game. Nothing has been changed from Emerald's graphics, and for me, that's fine. It's a hack, meaning some bugs and glitches can occur, but when I played it, didn't happen very often.
   Next, the sound. Like the graphics, the sound has not been modified, and for Emerald fans, that's a nice treat. The game looks and sounds very nice, and that is what a good game's core should consist of. 
   The addictiveness, for me, was rather high, but I don't go back to this game as much as I used to. This varies from person to person (respect others opinions is the way I go) and when I got nearly all of the Pokémon (and mistakenly tossed out some evolutionary stones) I just stopped playing. 
   Story is the same as Emerald, heck, the whole game IS Emerald's story and plot. It's better than Ruby/Sapphire any day. 
   The game has nice depth and takes a while to defeat (10 hours or more with Match call training). The very high levels can leave new players in a slump, while advanced players can take on a very powerful Battle Frontier, which can create a rift. This game is DIFFICULT for starters, but it gets easier with the more Pokémon you have.
   Finally, the difficulty. This game is EXTREMELY difficult if you have the wrong team set up or are under levelled, which happens most of the time. The trainers earn you some extremely helpful EXP and level grinding is a must if you want to beat the game.
   Overall, the game has its ups and downs, but in my opinion, it's a nice game. It takes one step up from the next best hack, Pokémon Rebirth, by adding more powerful trainers. I would recommend this game to players looking for an advanced challenge.

Pretty good. Maybe try to expand the review a bit but other than that this is pretty spot on. Oh an another tip would be to put some space in with the words.

This paragraph is cool.

But make sure to space them out

You also don't want weird spaces.

Nice review. Pokemon Emerald 386 is a great Pokemon Hack but I never got to beat the Elite 4

Thanks for the feedback! Glad to hear that you liked it!