Mega Turrican happened in 1993.
Mega Turrican was created in 1993.
Turrican happened in 1990.
Super Turrican happened in 1993.
Turrican was created in 1990.
Super Turrican was created in 1993-05.
Mega Apocalypse happened in 1987.
Mega Twins happened in 1990.
Mega Bomberman happened in 1993.
Mega SWIV happened in 1992.
Mega Lo Mania happened in 1991.
Mega Man Xtreme happened in 2000.
Mega Man Universe happened in 360.