Hmm...
After having a look at the rules 6.3. and 6.4. sound a bit confusing to me:

6.3.
All [...] Robots must
incorporate a way of removing all power to weapons and drive systems (systems that could cause
potential human bodily injury) that can be activated easily without...

6.4.
All [...] Robots must be
fitted with on-off switches that operate both radio receiver and drive/weapon circuits - in practice totally removing all power from the Robot.

6.3. says that only drive and weapon system power needs to be switched, whereas 6.4. states that everything needs to be powered down. Or does that mean that only drive and weapon need to have that easily-option...?