I love this stuff.
Gate of Thunder Stage 6 has a part in the solo taken from Rainbow's A Light in the Black.
Lords of Thunder Dezant sounds like Rainbow's Gates of Babylon.
Gate of Thunder Stage 1 has a part that sounds like Deep Purple's Highway Star. ("I love it and I need it")
Oh and Deep Purple's Burn also seems to be Flame Stag from Mega Man X2. Burn, flame...
Haha, can anyone point me to the music appreciation thread here? SAPPHIRE'S MUSIC IS AWESOME!