Ridiculous Tracks

Ridiculous Tracks are tracks that are harder than Extreme. They must be played on Hard or Harder-Than-Hard. They cost at least 60 Monkey Money and you must be at least rank 80 to play them. However, the reward is at least 1000 Monkey Money on Hard! There are often secrets on these tracks. Some towers/upgrades/agents/other stuff aren't allowed in some of these tracks. Star Shrine is a good example.