Yeah, i expect this game to have the same engine used in the first one, but no, they decided to use an one similar to how motocross games works in GBA hardware. 😅
I only played the ds version and the gba version seems to be cool,the menu and sound effects are similar to the ds version,but the music and the maps are different,it is incredible that they also got the same 3d models from the ds version. It's a nice game if you still have an gba at 2007 and could not buy a ds (or psp)