Participation Trophy is an Item that can only be found in the form of Golden Pupa loot. When picked up, any identical Crops planted in a 2x2 formation will merge into MegaCrops without needing Fertilizer. The game seems to have some sort of algorithm to form MegaCrops as efficiently as possible, but this sometimes fails. Any Fertilizer given to Crops before they merge is not carried over to the MegaCrop and is effectively wasted.
If the player is attempting to plant only MegaCrops, the amount of Fertilizer required in farming is significantly reduced. It also makes farming much more simple, as the player no longer has to worry about trying to merge their Crops in a particular way. This item causes Companion Planting to not work correctly, it the player should not pick it up if they already have Participation Trophy. It also can cause items like Bubble Shield and Water Witching to proc less, as there are less Crops for the player to water. These problems can be avoided by purposely avoiding planting Crops of the same kind in a 2x2 formation. This Item is also very helpful in getting the Roll Call Achievement.
The following is a list of possible Items that can affect Participation Trophy: