So I guess a) we could make a general "security lock" Gadget for Mecha (general rules of more expensive is more hard to break, player's choice of what the lock is, within GM-accepted limits and stuff like acceptable Progress Levels (because some of those locks are at the same PL as the Mecha, and some "Super Robot" settings obviously had the Robot at a higher level than the rest of the world) and b) a Feat (or Tree) that allows the characters to hack those security locks (ok, the lock has a difficulty to roll set and all, but the idea with this Feat/tree is triggering those "I just sat on this thing and all of a sudden it started moving!" or "whoops, so much for the vaunted security of (whatever the heck the Mecha is called)!" moments).