Chrono Trigger bikes and epoch

As some of you may have noticed, i started to completely rip Chrono Trigger on snes. However, i had some problem with the 2300ad bike race and the 360 view of epoch during one of the ending. The thing is, those sprites are scaled by the game, arent made in mode 7 and what is shown in the ram is the same as in game. So i have no way to get the original sprites.
Is there a chrono trigger pro out here that know how i should proceed?