Nice, yeah it sounds like you cleared all the levels, but the real question is did you find all the secret chests?
I didn't get to doing an end-state because I was planning to add more features but ran out of time due to some game-breaking bugs that I had to fix.
Good to know on the exploit, I'm not super concerned if it's hard to pull off.
You can also just restart the scene from the pause menu and you keep all the gold and progress but all the enemies reset.
Thanks for playing and giving feedback!