90 Anencephalous or brainless monster who survives and attains prodigious size.

So first off, I just got inspired and had an idea, I have no idea if it will actually happen, but I have ideas on the mind and I need to get them down somewhere.

I chose:
90 Anencephalous or brainless monster who survives and attains prodigious size.

I was thinking of doing something very simple and possibly similar to You Have to Burn the Rope. The whole game would just be one boss battle. The player would start out on the left and have two attacks, a melee and a long range (I was thinking a spear or javelin) attack. The boss starts really small, smaller than the player, and every time you attack him he grows a bit. As he grows he gets different attacks, and you have to keep attacking him until he grows to big to fit in the room, at which point he gets crushed and dies, cause he can't keep growing.

I figured I could get it done in two weeks because its not very complex, but now that we have a month, it might seem a bit puny compared to others. I think I'll start messing around and making some boss and player sprites, we'll see what happens...