It's sad how imbalanced this game is sometimes. Some of the ironman levels I get stuck on, I try all different varieties of towers and placement. Then I watch the walk through and usually all I had to do was spam magic towers with a bit of support to slow. Levels 7 and 9 specifically, I tried musket towers, cannons, everything, doesn't work. Magic towers with some barracks or vines, Golden against everything.
found a bug, or at least a crappy feature. it happens when
1. You use a scroll to get past a group of monsters, and it's the only path to the rooms you get to.
2. You click on an empty room that was behind the monsters.
3. It automatically makes you fight those monsters in the room you skipped. How it should work, is the long move doesn't work if you can't make it to the room before a fight.
 "Kingdom Rush"){kind=icon}
 "Monsters' Den: Book of Dread"){kind=icon}