There are 100s of Moshi Mash Up cards to collect.
The Moshi Monsters store says that there are hundreds of cards available.
i think there is 6
10
1
You get 20 cards, 2 badges and 6 stickers!
154
7 or 5
100's and 1000's
There is no way to give a precise answer because they continue to add new cards to the Moshi Mash Up Cards. The Moshi Monster Online Store says "100's".
There are many members who have Katsumas on Moshi Monsters.
The answer to this question is always changing. You can get trophies for each level you complete in Moshi Monsters. However, levels are added as needed. Moshi Monsters also awards trophies for other accomplishments. You can also collect Medals by completing specific tasks.