Boss

Dragon

Puzzle: Sudoku 9x9

A cruel boss who loves direct damage.

Hands and tail can hurt the player tracer and eliminate notes on board.

Medusa

Puzzle: Jigsaw Sudoku 9x9

A boss who lives with snakes.

The snake's magical eyes can cause varies status to limit tracer motion.

And be careful, because snakes are obviously poisonous.

Joker

Puzzle: Inequality 7x7

A boss(?) who wants to play with player.

It loves circus tricks, but always fail and makes things messy.