I checked out the "ckong" set after I saw these messages. I'm not getting far enough yet to suit me (L=4), but I can help answer the question...(posted 9603 days ago)Differences: (based on "ckong" versus "dkong")
Preamble:
Certain differences between the Crazy Kong ("ckong") and Donkey Kong US ("dkong") romsets are caused by Crazy Kong being based on the Japan version. The most obvious is the wave order, somewhat less obvious is the barrels behavior when Mario is on a ladder. There are also numerous graphic errors in "ckong" I'm not going to touch on when they don't affect gameplay.
Barrels: 1. Second hammer inaccessible. 2. Girder ends are cutoff. 3. Gaps in the girders. 4. Barrels will not go down a ladder Mario is on. 5. There are holes in the barrel cycle.
The ladder bit & easier barrel cycle are going to give him trouble on the US version. Despite the altered girders this is a piece of cake compared to the "dkong" barrels.
Conveyors:
1. Conveyor belts are twice as fast. 2. Fewer fireballs appear.
Very much harder than the "dkong" conveyors.
Elevators:
1. Right fireball is missing. 2. Certain elevators are missing. 3. Springs???
The springs don't feel right, but I'm having trouble figuring out why. The right fireball doesn't matter anyway, and the missing elevators don't matter much. The challenge on elevators is the springs, so ???
Rivets:
1. Top hammer disappears (it's still there).
Feels like rivets to me, versions equal.
Conclusion:
If DK Japan has the same springs, it won't be any problem for someone used to CK. DK US takes some adjusting on Barrels, and may have different springs.
Aqua