Not bad
This is the type of game I could let a small child play and I think it would amuse them for a while. The game plays well, the colors are appealing, and the character of the penguin is adorable. It just seems to lack something that would keep a child or adult playing. An Incentive or a goal besides getting all the cards right. Perhaps the player can unlock options or get trophies.
Example of what I mean. I used to play a game called math maze. I was offered a trophy room and I used to play that alot just to fill the room up with trophies. It was a goal even after the maze got a bit repetitive.