1997/12/18 JP - Original PSX Release
1998/05/04 JP - PSX Best for Family
1998/09/09 NA - Original PSX Release
1998/12/04 EU - Original PSX Release
2000/11/22 JP - N64 Version
2001/01/16 NA - N64 Version
2001/02/23 JP - PC Version Great Series
2001/07/14 NA - PC Version
2002/04/12 JP - PC Version Ultra Series
2005/08/04 JP - PSP Version
2006/12/21 JP - PSP Capkore
2009/01/29 JP - PSP 2-Game Value Pack
2009/12/16 JP - PSOne Classic (PS3, PSP, Vita)
2015/09/30 NA - PSOne Classic (PS3, PSP, Vita)

* In Japan, Mega Man Legends is known as Rockman DASH.
* In North America, the N64 version is called Mega Man 64.

Japan PSX:
Cover Back Cover Disc
North America PSX:
Cover Back Cover Disc
Europe PSX:
Cover Back Cover Disc
North America N64:
Cover Back Cover Cart
Japan PSP:
Cover Back Cover UMD Value Pack