Hello! Welcome to Feedback Quest 8! My name's Hythrain, a co-host and one of the streamers for this event! This feedback is being written live as I stream your game! If you're interested in seeing my live reaction, let me know and I can send you a link to the VOD once it's posted to YouTube!
So my normal approach for any game in these events is simple: I get the game, make sure it's not a virus, then play it with as little information on how to play as possible. This way, I can judge how intuitively someone can figure out the game. Only if it's obvious that I need to read more will I do so. I note this so you can get a sense where some of these feedback comes from. In addition, I want to note that feedback and rating are different; don't use this feedback to gauge what I'll rate, nor should you view my rating as entirely indicative of my feedback.
So this was not what I thought it was. I was expecting this to be some sort of Jenga with special blocks, but the entire mechanic of "place removed blocks on top" was just never a thing. At first I thought it was broken, but glad I took another look.
So first off, the audio is too loud and the mouse sensitivity for controlling the camera is too high. Having controls for both of these in your settings would be a good idea. Speaking of controls, you need add a settings to place those controls in as well as a menu you can use to access the settings and to exit the game (so the player isn't reliant on doing ALT+F4 to close it).
One issue I noticed is that if any block falls, you lose. This is true even if you happen to pull a block out accidentally and get it all the way out, at which point it feels unfair to say it's not just removed. It ALSO does this if you so happen to pull out the last block you need to win and then ANOTHER block falls before you choose what card you want. While there are problems here to be fixed, one thing that could help is if you make the point where blocks are considered fallen out of play to be much lower than the board is. This would give players the chance to fix things and would also encourage the player to start closer to the bottom instead of closer to the top when they begin.
I also noticed you have a mechanic to grab multiple blocks at once. I know others have brought up about the need for outlines on the blocks, so I won't tread that. Instead, I'll say you should have something on screen that both says how many blocks the player can select total and how many they've selected so far. I bring this up because I had gotten the "get two more blocks" power-up twice which, along with the starting value of 2, should've meant 6 blocks. However, when I selected 6 blocks and removed them, one of the blocks didn't stay grabbed and fell down immediately.