Funtopia

Funtopia is a park built over both sides of a highway. Essentially, it is two parks. A pathway can be constructed over the highway to link the two parks. To be successful, you need to expand on the number of rides and facilities in the park. This can prove to be challenging due to the space available to you, and also the placement of trees, which need to be demolished in order to fit some larger rides.

Pre-built Rides
Nausea Rating: 4.93(Medium)
 * Defibrillator (Steel Corkscrew)

Excitement Rating: 5.73(High)

Intensity Rating: 7.44(High) Nausea Rating: 0.00
 * Ferris Wheel 1 (Ferris Wheel) 

Excitement Rating: 1.53

Intensity Rating: 0.54 Nausea Rating: 4.93
 * Grapevine (Twister, Stand-up Cars)

Excitement Rating: 8.44

Intensity Rating: 9.07

Other than the lack of space and tree planting, this shouldn't be difficult.

Scenario Guide
First, build a few gentle rides. Second, build two go karts, and two roller coasters.