Giving this game a one is generous.
This is game is as hard as hell. All of the most powerful Pokémon are at the beginning. Whoever hacked this did a horrible job; I used up most of the beginning five Poke Balls on one Flygon (granted, it's health was yellow, but still), and the Poke Ball only shook once (I think, I was holding the space bar...but still!). I encountered TWO Pokémon on Route 101 that knocked out my Deoxys in one hit - Metagross and Rayquaza (both Level 10). That shouldn't happen.
The starters also were short sighted - sure, Mewtwo, Lugia, and Deoxys are awesome, but Mewtwo can't fight against Poochyana, Lugia can't fight at ALL, and thus Deoxys is the natural option. Really limiting the choices.. I'd prefer if whoever hacked this stuck with  the traditional Fire/Water/Grass thing (were there even Grass-type legendaries back then?), because then it wouldn't be so limiting. Deoxys also falls short because it can't switch formes. Which brings me to another thing:
The whole gist of the game isn't changed at all.
And when I say gist, I mean everything that isn't the Pokémon encounters. The text is kept (from what I remember, anyway), the sprites are kept, the move sets are kept (as far as I know), pretty much nothing is changed! Which makes it hard, especially since you can't catch ANYTHING.
Also, if anyone Nuzlocked this game and completed it, I will worship you.
I don't get why people are giving this game 9s and 10s. I just don't.
EDIT: Whoever made this needs to get one thing straight: the stronger Pokemon come on LATER routes, not EARLIER routes.
Also not seeing the "more grass" thing.

Some people make it hard all the way through... and I can't think of any legendary grass Pokémon at all. :/ but yeah, you a re right in saying this guy did not know what he was doing if what you are saying is true. I wonder how far you made it through the game?

Shaymin and Arceus with the grass-type Plate.
I didn't even beat the first gym yet...but this hack is pitiful.
Yes. This guy had no idea.

Virizion is also grass type. But giving a game a 1 because it was too difficult is a little unfair. It's posssible the hacker made the game very difficult to please players who are really looking for a good challenge.

Also, Mewtwo is the best starter in this game.

Celebi is the earliest grass legendary, number 251 to be exact. I have yet to play this hack... Perhaps I should try it after I beat light platinum...

tj4bigred : Eh, her too. But I didn't just give the game a 1 because of the difficulty. I also gave the game a one because (I may have accidentally left it out):
-None of the text was changed (A woman called my Deoxys a Treecko!)
-The legendary Pokémon (appear to) only be on the first two routes
-I got knocked out on the first route TWICE. THE FIRST ROUTE.
-None of the trainer's Pokemon were changed.
And yes, Mewtwo does kick butt, but tell me what Pokémon you face first, tell me what moves Mewtwo has, then tell me why I didn't recommend Mewtwo.
smartio : Her too. And don't if you value your time.

There was, in fact, a grass-type legendary: Celebi.