Somehow missed even more bugs. Fortunately these were all reported rather quickly so here's the patch notes:
-Fixed Prison Lane setting your character as Sonic for the rest of the playthrough.
-Added several boost panels so Amy, Fang and other non-spin characters can beat the affected stages.
-The 8 minute unlock for the extra level has now been fixed and should work as intended.
Also included with this update is a SA2B Graphics pack that changes the hud and emblems to how they looked in the 2.0 addon (Also support custom chars like Shadow!). But more importantly i got permission to make this addon re-usable for those who'd like to use any of its assets. A v3 overhaul update is also planned as this version of the map pack uses assets from an earlier build of SA2B so keep an eye out for that in the future.