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Medal 1:LOL BRAWL REFERENCE
Use the file and "file" the jail door. Get past the police dudes. At the pilars, go down. Then go down again.You will just fall and get the medal.
Medal 2: Legal Ending
Use the cellphone and when you must show your evidence, click on the bag. You will escape the legal way.
Medal 3:Badass Ending
Use the drill and choose the crowbar. At the pillars, first, go down, then, click on the arrow facing the wall. You will go against the brown cop. Click and you get the medal
Medal 4:Sneaky Ending
Use the file and "file" the door yet again and go past the weak officers and at the grenade-chair room, click on the chair, and when you are on the roof, chose the plunger.
Medal 5: Donut Want!
Donut 1 & 2 & 3: On the grenade-chair room, go left on the air vent. Once you land on the police room table, you will see another brown table. You will see a plate with donuts. Click on them.
Donut 4: Use the drill at the beginning. Use the opacitater. When you see the police officer looking everyone, there will be a donut next to him. Click on it.
Donut 5:Drink the NRG bottle. When you see the police officer on the table, he will have a donut in his hand. Click on it. You got the DONUT WANT!
Medal 7: BRAGH!
At the end of the Sneaky Ending, wait until you see a sun. Click on the sun and you will be IMMAH FIRIN MY LASER!

PS:Sorry about not including the lots of effort walkthrough. It was just too long.
PSS: Don't forget about Madness Recolaberation. (On my account click news. View Madness Recolaberation!)