Enemies in Lone Fungus EA have a random chance to drop a wide variety of powerups and helpful things. Per BASTI, the random drops are checked sequentially as follows every time Greencap kills an enemy:

• 85% to roll for random drops at all.

• 20% chance to drop a Mushmover charge if you have below 3 mushmover charges; OR an 8% chance to drop a Mushmover charge if you have 3 or more (check skipped if you have full charges or are playing on Explorer difficulty)

• 20% chance to drop HP (check skipped if you're at full HP)

• 75% chance to drop an MP refill, randomly 10 or 20 if below 60 MP; OR 30% chance of the same if above 60 MP

• 20% chance to drop a max MP increase

• 5% chance to drop a random powerup from among Fire Shroom, Invinicibility, or Quad Damage

• 1% chance to drop a Holy Mushroom (room wipe)

If an item is selected to be dropped by the first check, but every subsequent random check is failed, no item will drop (the process doesn't loop). This makes the drop chance much closer to 50/50 from any given enemy depending on how many of the pickups are available to the player. This means there are actually 12 different loot tables that could be in effect at any given time; as of EA 0.4 where speedruns are all done on Explorer difficulty, there are only 4 that are necessary to worry about. These are listed below (% rounded to nearest tenth, may not sum to exactly 100 because of this rounding):

Full HP/Above 60 MP: 59.7% no drop 25.5% MP refill 11.9% max MP increase 2.4% random powerup 0.5% Holy Mushroom

Full HP/Below 60 MP: 31% no drop 63.8% MP refill 4.2% max MP increase 0.9% random powerup 0.2% Holy Mushroom

Below Full HP/Above 60 MP: 50.8% no drop 17% HP refill 20.4% MP refill 9.5% max MP increase 1.9% random powerup 0.4% Holy Mushroom

Below Full HP/Below 60 MP: 27.8% no drop 17% HP refill 51% MP refill 3.4% max MP increase 0.7% random powerup 0.1% Holy Mushroom