making walking robots, just walking ones mind you is a near impossible feat itself, transforming robots? not impossible, but its going to take maybe months of fine tuning and maybe a couple of mods to get around the size, rule of seven and weight limitations. and of course, the burst motors might have to be amped up in the case of the parts being too heavy.
of course, we haven't even taken into account the havok explosions and game crashes that could come from putting burst motors on burst motors