Here is the full list of all 27 QUByte Classics - there are The Immortal achievements worth 1,000 gamerscore.
Died in battle in 16-bit version
Negotiated with the merchant in the 16-bit version
Won a battle in 16-bit version
It was damaged in battle in 16-bit version
Joined a battle in the 16-bit version
Attack an enemy in battle in 8-bit version
Bargain with the merchant in 8-bit version
Become small in 8-bit version
Die in battle in 8-bit version
Get damaged in battle in 8-bit version
Give dunric his ring in 8-bit version
Help Ana and beat the game in 8-bit version
Help the king in 8-bit version
Ignore Ana and beat the game in 8-bit version
Ride the magic carpet in 8-bit version
Sleep in 8-bit version
Use key in 8-bit version
Win in battle in 8-bit version
Become small in 16-bit version
Give Ana her ring in 16-bit version
Give dunric his ring in 16-bit version
Help Ana and beat the game in 16-bit version
Ignore Ana and beat the game in 16-bit version
Help the king in 16-bit version
Levitate in 16-bit version
Ride the magic carpet in 16-bit version
Shoot a fireball in 16-bit version