Although the objective and the open space in this scenario are seems pretty easy, it's getting hard when you will find out that you can't take a loan. Luckily, there are some pre-built rides, but the first thing to do is make all the underground paths going above the ground, so everything will be seen more clearly. Now, price the pre-built rides, gentle about $1.00-1.50 and thrill about $2-3. Next, open everything besides the Maze because guests are likely to get lost there and the queue time will be too long even after it has been shortened. What is worse is that the Neptune Ride and Maze cannot be removed, so you will have to listen to your guests later and reduce their prices.