Thanks for telling me. I will increase the the difficulty curve and slow down level progression. I will also start working on making the effects of the cards more obvious.
It's so much better! I really like that I know what's going on more and I think it's a lot more fun! If you're wanting to add more, I would recommend a scoring system, UI for the main menu and game over screen as well as maybe some enemy diversity that function similarly to the player. Like, make a cannon, Mini gun, and rocket enemy just as an example. Despite having ideas for more to add I think the game was much more enjoyable to play with the new updates and I enjoyed trying to min-max with just a single weapon type.