no
you can do each mission at any time (if you've unlocked that mission)
how to get past mission 13 of m.i. high
She is in the lift
not sure
put the colour blue and look in the middle
look on the mans sock
Choose the blue then look to your left!
Put the colour on blue and look in the middle
well i dont know that is whatim trying to work out
blue,yellow,red & green
harry is in the black car behind you in front of the tall building
its HBS-EM77 after wards flip your sample
keep going on the worm thing and then you will hack into the website!