r3 vs r4
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1313
1414Set 1 includes Worlds 1–6 and the hidden World B, containing a total of 7 worlds. This set is also the first set available for beginners to play. Completing Set 1 unlocks most other levels described below[* Except for [[/Crown Island|Crown Island]] levels, which require World B to be complete.].
1515=== [[/Set 2|Set 2]] ===
16[include(틀:자세한 내용,문서=세계/Set 2)]
16[include(틀:자세한 내용,문서=World/Set 2)]
1717
1818Set 2 includes Worlds 7–12, for a total of 6 worlds. The levels of Set 2 are harder than those of Set 1, but are easy enough with sufficient pratice.
1919== Xtra Levels ==
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