As the scientist of the team, he is always working, and lives with complex math and science.
He invented the "Boot-leg Aura", and currently has found a Orange Aura meteor which landed right next to his lab and effected him (he's taller than a normal Roto-Shroom). He also has located "Gold Aura" which is roaming around Diamond Dustway (AKA Diamond's Solar System) and is capable of seriously powerful light. Doomius Shroomius III also invented "Platinum Aura" which is powerful enough to do 3x the effect of Gold Aura (but must be fused with Plant Food for anything higher than 2.5x power).
A blinding ray of light can come out of the saw on his mushroom cap, due to his consumption of a "Gold Aura" which somehow got into the atmosphere of the planet the PvZ: Universe RP is located one. Doomius Shroomius III can leap fairly far (0.4KM at the max), spin around like a tornado (causing a tornado of light, his signature melee move), and he can also throw his cap (his signature ranged move). If with his machines and gadgets, he is armed with unpredictable choices and devastating power.
A list will be made as a separate page, so the inventions won't clutter up this page.