Click a tile type, then click on the grid to place/remove

Pulse fires on click or hold. Scatter and single fire only on click with cooldown.

Projectiles reduce the wall strength by one each hit until it breaks.

Arrow shows which direction the spike points.

Direction = which way the wall slides.
Span = how many tiles it travels.
Reverse = starts from the far end.

Controls wall art and background tile in-game