Wow for me to actually play and get addicted to a newgrounds game... Well done!
This is one of those games I can see being released maybe on steam as a rouge like and doing a good job.
I love these simple, randomized rogue likes that arn't to tuff.
As for a flash game, the game seems really good for what it is. This ain't a complaint because of that but if it were maybe a game for steam or something like so, I'd change the auto battle system a bit. Maybe let the player do all the attacks manually, even able to walk around during battles.
Something like Crypt of the NecroDancer.
This is something i'd love to see released outside of newgrounds, not as a flash game, something like android and maybe even steam.
Give the game much more depth, and gameplay, and you got your self a good game!
Even to make some profit on!
Hope to see more soon.