YMMV / Theme Park Inc

• Difficulty Spike: To say that the objectives and challenges get fairly cruel by the time you get to Arabian Nights and when you revisit the Land of Invention is a bit of an Understatement, especially since they start out ridiculously easy (the first objective being Operation Expansion with the goal of getting 40 visitors into your park at once).
• That One Level:
  • Operation Return from Arabian Nights requires you to have a profit of $50,000 in Arabian Nights, without using loans. If you've been buying expensive items such as Rollercoasters and Track Rides and they haven't been making a good profit, you'll find yourself running short on money or bankrupt.
  • Operation Onwards is where the Board of Directors really start to push your limits, and Operation Boss, the final objective in the game... Don't get us started on that.
  • The challenges aren't immune to this: Some of the more challenging ones include Ride Popularity Drive from Land of Invention, requiring you to have 25 visitors use the Wheel Deal ride, Profit Maximization from Polar Land which requires you to have a profit of at least $1000 for 2 months and Tidiness Inspection from Arabian Nights where the thought "Too Messy" should not in any of the top 3 thought bubbles.