Difficulty Spike

4 vs. Satan:
* The first dungeon as pointed out by the heroes.
Dragondawn:
* The monsters on the second island are stronger than the ones from the first.
* The tower has far more powerful enemies than any confronted prior.
* The last dungeon. The enemies are powerful tanks AND are resistant against most spells.
The Legend of Devils / Heroes:
* The fifth dungeon. It has enemies shooting devastating attacks at the heroes. And most later dungeons are either just as bad or worse.