My thoughts and opinions on the final themes

Alright so, as you can tell, I only gave themes a +1 or -1, reason being that it's the final and most important theme voting round. My 'strategy' for this, was giving a theme a +1 if I thought I could make an interesting, and unique game out of it, and a -1 if I didn't think I could (for the most part).
1)Limited memory -1: I could only think up one interesting game idea for this one, and I feel that all of the games would have a similar concept, and gameplay to them.
2)Ridiculously overpowered -1: I think a game where anything is intentionally over powered would get either extremely boring, or extremely frustrating after only a small amount of time. What I mean by that is: If the player were extremely overpowered, then he would just mow down everything in his way, and it would provide no challenge for the player at all. And if the enemies were extremely overpowered, then it would become very frustrating very quickly, because the player would be completely powerless.
3)Your life is currency +1: I feel like this could be a good theme because there are so many angles you could go at it from, you could use the theme as a metaphor of sorts, you could make a wave survival game where the cost for upgrades and better weapons was your life itself, and many more. All and all, I think it would be a fun theme to make a game out of.
4)Side effects +1: This would be a good theme because it's broad, but not too broad at the same time. It does not define what the side effects are from, or what the side effects are, but that's completely up to the developer(s). You could take it literally and use side effects from heavy medication, maybe playing around with hallucinations, or you could use it as kind of like an 'actions have consequences' type thing.
5)Space exploration -1: This does not give the developer(s) enough freedom. I think every game would turn out very similar.
6)Change the genre of a classic game -1: All this would be is glorified plagiarism, with a twist added on. You would have to either download all the assets from the game, or you would have to recreate them all by hand. Not to mention that it wouldn't give the developers very much creative freedom.
7)Only one enemy -1: I gave this a -1 because it just seems a little bland to me. I would be fine with making a game out of it, but it's not one of my favorites.
8)Risky powerups -1: This defines a feature in the game instead of giving a theme to base your game off of.
9)Shelter +1: This is very broad, and gives developers a lot of creative freedom. You could again use it in a metaphorical sense, or use it quite literally.
10)Color changes everything -1: I gave this a -1 because I feel that the theme would create games with very bad looking graphics, and I believe almost everyone would end up using the same colors for things as other people (i.e red = enemy, green = friendly).
11)Everything has a price -1: I would definitely enjoy this theme, but it seems too similar to 'Your life is currency', and I liked 'Your life is currency' a lot more.
12)Contagious +1: I like this theme because of how many games differnet could come out of it.
13)Tiny town -1: I don't like the feel of this theme, it seems to define the place that the game is set in, but not so much the game itself.
14)Mutation +1: Yet again a very broad theme, that allows developer(s) to have a lot of creative freedom.
15)No upgrades only downgrades -1: This would just make the game more and more frustrating to the players, thus giving everyone lower ratings on their games.
16)Underground -1: So this theme was originally 'One room', but that was a theme for a previous LD, so it seems like the mods must've come in and changed it. Anyway, I think that this is similar to 'Tiny town', seeing that it gives the place and not a theme.
Alright everyone, those are my opinions, make sure to keep that in mind, they're just opinions, no need for anyone to get angry about them!
Have a good Ludum Dare everyone!