Here is the full list of all 13 Arcade Land trophies - there are 6 bronze and 7 silver.
Pass the first level of the Fire Caves.
Pass the first level in the Snake Yard
Pass the first level of The Core.
Beat the first horde of Catacomb skulls.
Pass the first tract of the Sky Bridge.
Defeat the Guard of the Masks Chamber.
Defeat the Guard of the Masks Chamber a 100 times.
Cross the Sky Bridge succesfully
Defeat all the Hordes of Catacomb Skulls.
Pass all the levels of the Snake Yard.
Pass all the levels at The Core.
Pass all the levels at The Fire Caves.
Achieve 1.000.000 points.