I am confirming this for other people so they don't scratch their heads. Puzzles and Dragons Eur does not boot using Sky3DS and RegionFOUR. Apparently RegionFOUR is known to not work with *ALL* games. This is one of them. The game boots in Classic Mode on another N3DS running 9.4 Emunand w/ Sky3DS. So on a Euro system it should have no issues booting with Sky3DS.