This is actually harder than it sounds, as you will need to play through the first level while collecting all of the coins and finishing in under 1:10. To do this, pick the Locksmith, as there are a ton of locks you'll need to rush through. Ignore all alarms and guards (also don't bother sneaking, just run) while you make a beeline to the street where you will need to gather up the remaining coins here, and in the hall, infirmary, and wardens office in the building between here and the exit. These coins are a bit random and require some luck with their placement, making this a bit more difficult. Missing coins will add to your time, which is why you must clean the level out on top of rushing through it.