Thermal energy
Thermal energy (T-ENG) is now used for charging up special attacks and restoring the life bar, rather than for survival (represented numerically by the player's HUD in "" and "Lost Planet 2") or as currency (used in "Lost Planet 3"). Players can tap into their T-ENG reserve to release numerous forms of an exothermic (EX-T) blast to deal large amounts of damage to enemies.