[Lil' Lavery]

There is an obvious amendment to the OP's statement that nobody has directly and bluntly noted. It disallows stored energy on the minibot that is used to propel the minibot up the tower.

Stored energy can still be used for other functions on the minibot as well as anything you desire on the hostbot.

Should be taken for granted, but if someone was reading this thread hastily and out of context, who knows.