Q1. How to gain Gem?

You can gain different color gems by solving specific Puzzles:

  • Sudoku: Red Gem

  • Jigsaw Sudoku: Blue Gem / Red Gem

  • Inequality: Green Gem / Blue Gem

Winning in battle / defeat boss can gain more Gem.

And Color Gem can gain by winning in battle / defeat boss with no skill and weapon.

Q2. What is the use of Gem?

Gem can buy skill in Store, or feed skill in feed pool.

  • Buying skill increases skill reserve, not level. You need to level up the skill in feed pool using Stars.

  • Feeding skill increases skill exp. When skill exp is full, you can gain skill reserve 1-up in feed pool.

Color Gem can buy seed in Store, which gives random skill reserves.

Q3. What is the use of Star?

Star can level up skill after skill reserve attains particular number.

Also, cumulate gaining 20 stars can collect 1 star seed in puzzle menu.

Q4. What is the rule of cell setting?

To place cell on cell board, there are following rules:

  • cells with same color should be connected by vertexes.

  • cells with same color cannot be connected by edges.

If any cell break the rules, all weapon of same cell color will be disabled.

Q5. What is the rule of

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