I don't understand the logic behind everything going up in price as we prestige. It's not making anything "challenging," it's only making it frustrating. In an idle game there's no room for "challenging" since the only challenge is waiting. It's really annoying having to wait 3+ days for the RP to use the illegal money methods to get your badges or even any of the upgrades.
The new upgrades are so far away from the last it's unreal. There's a massive gap between them, especially because the grind isn't worth the payoff as far as a singular upgrade goes.
With most of the old problems gone, I still find one to be fairly annoying. I really think the game would do a lot better with separate unit rally points. I constantly find myself sweating over the fact that all the units are leaving and it's practically impossible for my to control them separately.
I loved to play, especially since I loved infectonator.. However I still wish there were a way to increase play speed. I sometimes get tired of sitting there waiting for them to finish off a building or finish a massive battle.
Easy way to take on the LORDS of Hell: Keep your hero unit back at all time. Break through the first wall and get to the large hellish one. Use any spell to attack the first Lord in line, making him come at you. After you kill him, repeat until you have defeated all of them. As for units, I recommend using the large ones on page 3 such as: Golem, White Tiger, Death, Black Dragon. Perhaps archers as well as a melee unit.
I truely loved this flash, I played it a long time ago before it was here. If it is true you helped develop this, please consider making more like this.