I managed to notice a slight, but fun nonetheless, glitch that results from this version of SA-SRB2. Whenever you save a game within the first three levels and reload it later, every color on sonic that was blue with turn appropriate shades of green. Sonic will thus turn into the ever popular Ashura the Hedgehog. I've noticed that this happens with tails too(Ashura the Fox?).
In the off chance I'm wrong, I had saved in the second act of Green Flower Zone as Sonic on normal. The greeness continues on into the third zone too. Unfortunately, as the game automatically ends there unless you use the level select, I could not see if it happened with the other unaltered stages.