"Sonic In The Fourth Dimension" which looks like 'time' judging by the dinosaurs in the background. Were they thinking of Sonic CD when doing this one? It is by Martin Adams and published by Virgin Books.
"As part of his latest plan to rule Mobius, the dastardly Dr Robotnik is sending his robots back through time to change history. Sonic the Hedgehog - guardian of Mobius, hero to all and all around cool dude - intends to stop him. Hopping onto one of Robotnik's time machines, he zooms into the past. And that's when his troubles
really begin."