Electro Tile
Electro Tiles (also referred to as "Electros") are similar to Spikes in every way except they go faster and can't hit UFOs. Electros can be set from speed 1 to 4 with speed 1 as fastest and speed 4 as slowest. Unlike their Spike counterpart, they do not have Metatiles that operate slower speeds of spikes for it just ends at speed 4.