R2H2 "Tirpitz" is a giant bipedal walker-style mech appeared in the game Battle of Titans. It is mounted with a double-barrel naval gun known as the "Inquisitor".
Has a rare Martian version (R2H2M1) of itself, coloured in black.
Its name references the German battleship Tirpitz, though there is no canological relation between the two.
For its personification, not to be confused with Tirpitz (Azure Lane) and Tirpitz (Warship Girls R).