First of all, I think this is a great game and I would support it if I had pay-pal. I don't, but should you ever sell it in a way I can easier pay for it, I would. As for now, all I can do is give you some hints that I hope help.
I like the idea of this game. It's easy enough to understand that you are immediately hooked in, but you also need to develop some strategy and also there seem to always be new things (cards and enemies) to discover, so that you are immediately hooked. At least I was, it's kind of addicting.
In the game you need both luck and a strategy, which I quite like. You will get father and be better if you have a good strategy- cards and abilities that work well together and an idea what to use when (or against which enemy). However, there is also a heavy portion of luck in there. If you have good luck you can get far while playing bad, but if you have bad luck even with a good strategy you might fail. Personally, I would have maybe liked a bit less luck, but that is different for anybody and complaining on a very high level. In the end due to all the special abilities the strategy is very important.
I like how it is built up. That you don't have a list of enemies anywhere, but you figure out while playing who is there and how to best defeat them. The same goes for the imaginary friends. (Though I have unlocked only some friends and only ever used one, because either this friend is much more powerful that the others I have unlocked or it just works with my strategy better.) And also for cards. I love that you can get some cards only from enemies- I love the stealing.
The story around it is cute. And that it has animation and good graphics despite actually being a card game is great.
Despite this game being great, there are some bugs. (It is beta overall and I hope it helps for the final version if I point out what I have noticed.):
In the higher levels I sometimes had problems with how my card showed. One card would suddenly be bigger or out of place, covering another card or being covered by another card. This card often didn't let itself be played, but for some reason I could still lock it with my imaginary friend (so it reacted to a certain degree). Even if I didn't lock it, it stayed in the game including the confusing display, even after I drew new cards. Refreshing the browser usually fixed the problem, but sometimes led to another one (that I will describe in to paragraphs).
On some levels the game kind of lagged. The enemies would just keep attacking, even though it was my turn (and I wasn't paralyzed or anything). Once that happened until I was dead with no chance for me to use my on-my-knees-ability (though maybe that was blocked, I am not sure) and twice they just kept attacking beyond my death and the game went into a loop. I tried refreshing the browser there, but they kept attacking after my refreshing and the only difference was that I had more will shortly.
To the refreshing problem: As I said, when it lagged I refreshed my browser. And sometimes that led to my suddenly having more will than before I refreshed (even at the times where I wasn't attacked, so it's not just a little time back). It might also be that only the number it showed me was wrong and I didn't have that much will. I didn't look at that.
The "Try again at that floor"-Stone Thing: So I had this stones and the giant offered me another try, but I refused, because I died at a lower floor and wanted to save it as the game suggested. However, the next round I wanted to use it, but the Giant didn't offer. I thought I had lost it. Then some rounds later when I didn't think about it, I again got the offer at a low floor. Is this a lag in the game, or is the offer purposefully random, or are there other rules? If it's not a bug, a better description would be nice, otherwise: There is a bug.
And not a bug, but another point where I think the game could be improved: I think there could either be more of those "try again stones" to be found or maybe another possibility to start at a later floor. (Like stones that you can purposefully place somewhere you currently stand as a turn, so that you can start exactly there the next time. Or a thing that you can start 5 levels or so below your current death-level) I understand the game is built around playing several times- you also get these gifts and souvenirs that you can also use later, but it's sometimes annoying to nearly always start from the beginning. I'm not saying never do it, just maybe not so much.
Now it sounds as if I was mainly complaining. But I only meant to give some hints to lags and a suggesting, in general - as I said before- the game is really good and once the bugs are fixed will be great. I enjoyed playing it and would be willing to support it or buy the finished product if I had the means to do so. (I can do e-bankning, but not paypal)
Thanks for all your work that surely went into this game and for releasing this version here for us to enjoy!