No video game character has had a steeper fall into a bottomless pit than Sonic. While Sega pretty much screwed the pooch on every iteration on home consoles (except their most recent release, Sonic Colors), Sonic has enjoyed a much better outing on handhelds, probably due to the hardware limitations. Two-dimensional environments are clearly best for the little guy, thank the hedgehog gods.
FUN FACT: A final extra boss stage can be unlocked by collecting all of the Sol Emeralds and Chaos Emeralds. Gotta catch ’em all!