You're welcome for the input. I just realized that I automatically converted MMO into MMORPG in my head. Ha! But, the gist is the same for these purposes.
As to your second point... Taking a concept and building it in your own fashion is how most games... okay, really ANYTHING is made. Assuming you aren't just recreating the game using HTML5 instead of GameMaker... but even then, the rules don't say anything about creating an original game - so as long as you're not stepping on copyright toes you should be fine. <- I actually wonder about how this works on some parody remakes of things like the Legend of Zelda. Having said that, the scoring is based off of how many people play your game, what rating they give it, and then the judges' evaluations. SO, it's probably best to give your own twist to things. Similar enough that people will try to play it because it feels familiar, but different enough that everyone who plays it can go, "oh, that's interesting!" at your mechanics or art style or use of audio (I saw a game where you were a little blot of ink guy and you ran along a music score jumping from note to note. Every time you landed on a note, that note would play, so you were trying to play the whole song (and it was easiest if you kept moving to the beat of the music)).
If you have a way to fest up that GameMaker game, go for it! If not, see if you can think of one.
Or, is there anything you're particularly interested in, or really enjoy? Like that music game which came about because the team was only a team of 6, but 3 of them were audio oriented and had a great idea.
