Biomass lets cells regenerate and can be increased with Heart Cells.
If a creature is low on biomass they will become unsaturated and lighter.

Spike Cells:
Causes damage on contact.
Damage increases depending on how much neighboring cells, the less neighbors the more damage the cell does.

Lightning Cells:
Creates bolts of lightning when activated.
The bolts electrify targeted cells and do damage depending on how electrified a targeted cell is.
Direction is decided by neighboring cells.
Frequency increases with voltage.

Heat Pumping Cells:
Heats cells on contact when and cools connected cells when activated.
Heat slowly damages the cells that get too hot.
Cold cells slow down and lose flexibility.
Cold cells can be easily shattered with speed.
Power increases with voltage.

Explosive Cells:
Explodes when activated or killed, dealing damage to nearby cells.
Radius increases with heat.

Acid Cells:
Creates acid when activated, damaging cells on contact.
Acid is can be pushed by Jet/Vacuum Cells.
Direction is decided by neighboring cells.
The distance that the acid is launched is increased with voltage.

Laser Cells:
Creates a long ranged laser when activated, heating cells on contact.
The Laser cell also heats itself when activated.
Direction is decided by neighboring cells.
Power increases with voltage.

Venomous Cells:
Poisons cells on contact.
Poison will remove biomass from a creature but won't completely kill it.

Radiant Cells:
Heats nearby cells when activated.
Radius increases with voltage.

Leeching Cells:
Steals Biomass from cells it contacts.
Cannot completely destroy cells.
The Leeching cell will become poisoned if the targeted cell is poisoned or if the targeted cell is a Venomous cell.

Impact Cells:
Does damage depending on how fast the individual cell is going.
Damage increases with speed.