the bonus levels have the player controling either a jet (from after burner) or a bike (from hang-on). both were released by sega with the former sharing development crew with this game. so it might just be a coincidence. Add
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the arcade version had a demention of thrill, a moving seet that shooj out of control during gameplay. this added to the roler coaster feel of the levels.
the bonus levels include driving a jet or a bike. They are from after burner and hang on, respectively. both were dun by the same staff. Add