Is it just me or do all of the enemies' health get multiplied by 10 after wave 500. Not just the ones after wave 500, but ones I had already defeated. Glitch?
I also think that they should remove the energy system, I calculated that at my current level it takes over 7 hours and 45 minutes to recharge. Really fun game though.
I think that they should add a way to put you and a friend in the same dungeon at the same time, not just using another person's character, but actually doing the dungeon together co-op. It would be pretty fun.
This game just goes around in circles until you are just restarting over and over until you can reach just a few more levels..... It's just kind of pathetic