○ Outline ○
It is a game which leads the rolling ball to the goal without dropping outside.
When all balls on the stage touch a goal, it become level clear.
The first level begins with one ball, the second level begins with two balls, and one ball increases at next level.
When the level of eight balls is cleared, it's stage clear. (* There are also stages where clear conditions are less than 8 balls.)

If a ball fall from the stage, it is game over.
When it becomes game over in a stage, it can resume from the level which consumed the "spare ball". If you clear stage, you get "spare ball".
When "spare ball" is 0, please play other stage, and clear, get the item.
* You can get spare ball at the cleared stage clear again.
* Get count of spare ball is different every stage.
* You can resume without using spare ball at the stage is marked "continue free" at stage list page.

☆About special gimmick
Some special walls and floors exist in a stage. For more information on gimmicks, see "Gimmick".

○ Operation ○

◇Tilt sensor compatible device
Hold the device horizontally and tilt it to operate. (The stage is linked to the tilt)

◇Tilt sensor non-compatible device
Touch the screen and slide (or drag with the mouse) to tilt the stage in that direction.

○ Attention ○

・When clearing the level, you can interrupt save with the "Save for resume" button. The next time you start playing, it will start from the next level. (* Suspended data will be deleted when restarted)
・The stage clear status and interrupt save data is saved in user data area of your browser. Data cannot be moved or shared with other devices.

☆You can see the detailed explanation from "How to play" in the top menu of the game screen.

○ Special gimmick ○

Some special walls and floors exist in a stage. Since all of appearance are completely the same as that of other walls or floor, it cannot distinguish.

・dummy wall
It is a wall which a ball passes through.

・warp wall
When a ball enters, a ball will move to the another "warp wall" at the moment.
* When a ball is in (or touch) another "warp wall", it is not moved.

・high repulsion wall
It is the wall where a ball strongly repels. It is returned in the direction to which it came so that it might be flipped when a ball touched.

・jumping floor
When a ball ride on the floor, the ball is made to jump.