Toilet Tower Defense is a popular tower defense game with a humorous toilet theme. The game features many different unit types with varying strengths. There are several sources that provide tier lists and value lists for the units in the game, but they are largely opinion-based and should be taken with a grain of salt. Here are some of the units that have been consistently ranked highly across multiple sources:

• Upgraded Titan Speakerman (UTS): This is an extremely powerful unit thats inexpensive to deploy and easily the most affordable mythical unit.

• Engineer: This unit is highly recommended by many players as it can protect your other units and is very effective in every single game on any map.

• Scientist Cameraman: This unit is considered a god-tier unit by some players as it gives you free money whenever you place it down. Its an exclusive unit thats hard to get, but its worth the effort.

• Jetpack Cameraman: This unit has less range than the Titan TV man but more DPS. Its pretty good for putting a ton close together so that they just wipe out whatever you need to.

• Titan TV man: This unit has a lot of range and can take out a lot of enemies at once. Its a great unit to have in your arsenal.

Its important to note that the best unit in Toilet Tower Defense may vary depending on the players strategy and the specific map they are playing on. Its recommended to experiment with different setups and strategies to uncover what works best for you.