▼ Screen
Screen resolution

▼ Color
Screen color depth

▼ Texture
Texture color depth

▼ Expression
Real mode
You can choose it if more than a normal mode is cleared.
It is very dangerous!
So, it is never shown to the children!

Blur effect
When a sea otter is destroyed, I show you terrible visual effect.

Snow
The second stage weather is controlled.

▼ Difficulty
Set it up in your technological level together.
The common people can never clear the super-κ mode.

▼ Controller, Keyboard
The allotment of the button is changed.
When reverse rotation is chosen,
the turn direction of the recession becomes opposite.

▼ Volume
The settlement of the volume of the effect sound and music.

* You can change "option.ini" in the note pad.
(Though it is secret, there is option which can't be changed with a dialog.)