How to play game
- When the back side isn't apparent.
Drag (or swipe, pan..) the screen to rotate the scene
You can see the scene from every which direction.
- Do you want to exchange the block for the next block?
The block to descend next is prepared at the right upper side of game screen.
If you tap the block to descend next as follows,
you can exchange the descending block for that prepared block.
- Rotating block.
Six buttons which can rotate the descending block are at the bottom left of the screen.
Two buttons are used to rotate the block clockwise or counterclockwise around the x-axis,
and the other two buttons are used to rotate the block clockwise or counterclockwise around the y-axis,
and the last two buttons are used to rotate the block clockwise or counterclockwise around the z-axis,
- Moving the block back and forth, or from side to side.
Four buttons which can move the descending block back and forth, or from side to side
on the same hight are at the bottom right of the screen.
