Added variant with Upgrades for the fire form.
Outdated sprites have been adjusted.
Improved spines and general shading.
Removed Upgrades from Fire form.
Removed no-sound variant.
Added Calypso's jump ball sprites for Modern Sonic.
Adjusted Modern Sonic jumpball sprites to a more modern coloration.
Re-added energy bar.
Adventure 2 Sonic + Modern Sonic Palette Swap