MobyGoal achieved! Thanks to all contributors who helped us reach 250 documented ZX81 Games.

Kirby's Block Ball (Game Boy)

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MobyRank
100 point score based on reviews from various critics.
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MobyScore
5 point score based on user ratings.

Game Boy

ESRB Rating : Kids to Adults Kids to Adults
USK Rating : unknown
OFLC (Australia) Rating : G G
OFLC (New Zealand) Rating : unknown
ELSPA Rating : 3+ 3+