Caverns of Roxor

The First expansion set to Super Dungeon Explorer

Fun with fire and turtles[]

Here your new heroes and old can face hordes of devious turtles that kick each other at you and hurl powerful cannonballs in your direction.  At the same time, fend off fiends of fire (say that 10 times fast) some that split familiarly into smaller but much weaker versions of themselves.