Luigi gets the rest of the green stars in world 1 Galaxies: Fluffy Bluff Galaxy 00:15, Rightside Down Galaxy 07:25 and Bowser Jr's Fiery Flotilla 16:48
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https://www.youtube.com/watch?v=QyAKI85BAKA
Riddler and Clayface breaks into a bank to steal Gold and a Giant key as the start of Riddler's master plan
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https://www.youtube.com/watch?v=rp_qaHl7NY4
Luigi goes through the worlds and galaxies getting some of the prankster comet stars, Stars: Peewee Piranha's speed run, Spiny Rainbow romp 03:32, Digga-Leg's Daredevil run 06:09, Fiery Flotilla speed run 08:45, Rolling Crabber romp 12:27 and C'mere, Goomba 14:57(Gearmo)
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https://www.youtube.com/watch?v=7ezwzxqEhfs
Part 1 Introduction to the Big willy restaurant and the start of the missions in Harbor city, Missions completed= Big willy is people, Harbor city wiener roast, Duke of oil and Meat the press
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https://www.youtube.com/watch?v=RXor5CgXJvo
Getting both star with help from Yoshi, Stars: Silver stars in hightail falls and Hot-stepping dash pepper 05:37
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https://www.youtube.com/watch?v=WZK4I1OBXnY