Another set of old tilesets for a cancelled Sonic fangame I have been workin on. Although these are older, more precisely I made on early's 2006 and recently dig out for public usage. 

This scenery meant to be a kind of rainforest, with slopes, loopings, tunnels, tree trunks and speed roads, with grassy floors and muddy and grungy foregrounds. 

I hope it help you folks.