A long dragon boss. It features six weak spots that have to be popped using the player's attacks. It always spawns a Power Star. It uses a GeneralPos with the name プレイヤーデモ位置（ベリードラゴン戦） to position the player during the intro. If it's part of a cutscene, it also creates cutscene objects for KoopaJr and KoopaJrPod. See BellyDragonLv1Zone for a better look inside the cutscene.
The object will appear when this switch is activated.
Gets activated after being defeated.
Registered but never used.
Special cutscene used before the actual boss fight begins.
Spawned after defeating it.
Used during the intro, midway cutscene and ending.
The text message ID to be used. Needs to be specified in the zone's text file. The label prefix is DemoOpeningKoopaJrBellyDragon.