Wanted to let you know about an inaccuracy on Turtle Bridge. Despite the manual saying the range of points per round trip is 2-12 depending on speed, the actual max is 10. In your simulation, the max is 11. This can be easily seen when the game first starts, and you can move as fast as possible, due to no turtles diving down yet.
Thanks for your feedback and helping to improve the accuracy of this simulation! I've updated the simulation of Turtle Bridge accordingly.