There is three type of rule.

TYPE-A
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Beat the decided number of Mr. Pouty before the time is up to proceed to the next stage.

Bonus points granted according to the remaining time.

As you proceed to the higher stage, Mr. Pouty moves faster!
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TYPE-B
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Beat more than 2 Pouties at a time to get high score.

Hitting falling Mr. Pouties counts as scores.

Beat the decided number of Mr. Pouty before the time is up to proceed to the next stage.
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TYPE-∞ (Endless Mode)
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Hit the Mr. Pouty all the way.
Non Time limit. Non quota.

Mr. Pouty's speed can be selected from 3 types.
(EASY,NORMAL,HARD)