Sales of Aussie Mega shampoo have been discontinued in the United States. Some of the ingredients (which actually include an antifreeze derivative) have questionable attributes with tenuous health risks. Here's a link to one of the concerned watchdog group's evaluation of the product ingredients; judge for yourself whether the risks are real or exaggerated: http://www.cosmeticsdatabase.com/product.php?prod_id=11791¬hanks=1
You can still order the product online from companies with overseas sources or even remaining stock.
Mega Twins happened in 1990.
Mega Turrican happened in 1993.
Mega Bomberman happened in 1993.
Mega Apocalypse happened in 1987.
Mega SWIV happened in 1992.
Mega Lo Mania happened in 1991.
Mega Man Xtreme happened in 2000.
Mega Man Universe happened in 360.
Sonic Mega Collection happened in 2002.
Mega Plaza Shopping Center happened in 1997.
Mega Man Network Transmission happened in 2003.
Mega Man Anniversary Collection happened in 2004.