KINDA RANDOM but when I was younger, I always thought that the spheres in "Blue Sphere" represented Sonic characters. So like:
Blue = Sonic: Since the objective is to get the blue spheres, the blues ones are essentially good because well Sonic is the main character of the franchise and whatever
Red = Knuckles: The red ones are bad and make you lose the game when touched becuase Knuckles is a jerk
Yellow = Tails: Since Tails is Sonic's buddy, the yellow ones help Sonic by making him jump over a bunch of spheres when touched
White = Robotnik: These spheres represent evilness and could act like traps, accidentally pushing Sonic into red ones or trapping him between two white ones
for some reason this also applies if Knuckles if playing. Though, I always thought it would be cool if you collect red spheres instead, if the player chooses Knuckles.
Or something like that... weird imagination I had lol.
But yeah, that game is pretty trippy. In fact, a lot of the special/bonus stages in Sonic games are pretty trippy or random lol. My fave though is probably Sonic 1's special stage. The changing background... the rotating maze... the memorizing music....
I demand this song be put into Smash!!
okay yeah, carry on...