This guy gets it.
This game was his first attempt at doing anything in Gamemaker specifically as before, he'd only done RPGMaker. This game was a learning experience for him, especially when he first started out since he was learning it all as he went along... getting more experience along the way. Now we have stealth mechanics, area effects, and other small goodies that polish the game into something more. After this game, he says he wants to use the knowledge he gained from it to make an even better game... hopefully right from the start. He already has many ideas on what he'd like with his next game as it will more than likely star Doggie himself and possibly one other character. He's an artist first and foremost and the programming aspect was something he had to learn since he wanted to also be a game designer... a SOLO game designer at that.
He's also very eager to work on his next game idea.
As for the mods folder, if he actually does add that in, it will probably be after the game is finished (Same with the gallery).
For the next full release, you can expect three foes.