The only thing I was able to hack was money and the current health. So basically you need to press top left and select the game heelfall with cheat engine. Basically open heelfall then cheat engine.
Then from cheat engine select heel fall top left.
After that you can change any value from the game. To do that you have to for example go to the shop in heel fall. And let's say you have 500 gold. You simply put The value at 500 and do the first scan. Then you will get many results. Then you should buy or sell anything in the shop to change the gold amount. After the gold changes, you change the value from 500 to 480(for example or any new number that is your gold amount). Now you will press second scan or next scan or whatever it's called. This will filter all other numbers. When you are left with the 480 now press change value and add 99999 gold.
Regarding the hp hack it's the same but sadly it resets every turn. Which means that after having for example 50 hp you can find the value by taking damage and then changing it to 100000 for example. But you will keep changing it every turn because it doesn't get saved or I don't know how to save it tbh.
Another thing you can do is change the boss hp. That's how I beat the queen change her hp to one. Again you take her original hp in scan one which has a value of 200. Hit her once with any unit and scan with whatever that value is (190 for example) and now you can change the 190 to a 1 .
Hope that makes it clear sry I'm not good at explaining
