Thanks for checking it out! :) Yeah it's pretty hard for sure! I think by design it's always gonna be inherently pretty tough (controlling two things at once!) there are a bunch of difficulty options that can hopefully help ease players in and I'm always looking into tweaking the game's balance too off of feedback!
Oh to use the cards in your hand you press spacebar during the game BUT I totally understand missing that - at the moment I've just got that kinda long "How to Play" section at the beginning as a bit of a temporary measure that I think throws way too much at the player at once, I need to add some better tutorials and explanations as things go along! (I've been thinking about including the button to use hand cards in the UI on screen at the bottom at all times too to make that way more obvious)
And I'm thinking of adding an optional non-pixel font to the game if I can work out how to do that lol (it'd need to be at a higher resolution than the rest of the game so I'm going to try and figure that out at some point!)
Thanks again for giving it a go! :D