Im absolutely loving this game, completed a few runs with 5 or 6 decks and its absolutely amazing, very hard at the start before i got the hang of it, while i absolutely love the game and give huge props to you (not sure if you are brazillian mais se for parabéns irmão) i have some criticisms
1. The slowdown issue that thankfully is being looked on, for me on Android it only happens in the bottom floor (where theres the most entities)
2. Amount of money given, i feel like battles should give a bit more cash so we can experiment with new builds further, usually buying the random booster cards is a complete waste of money and you want to save for steroid items on your starter or future rare card, a bit more money could open up team building freedom
3. Battle count before "ranking up"
Other than that im absolutely loving the game, you have made an amazing job, id also like to mention the cursed key event is bugged atleast for me, after beating the guy i didnt unlock him on league mode (full run clear) anxiously waiting if theres an Easter egg for clearing 100% decks or league chars :)