Spikes
Spikes are a common obstacle in the Deluxe and Platinum Editions of Return to Wonderland, and Wonderland Secret Worlds. They are a myriad of thin spears that come out of the ground on regular intervals, which can be set to loops 1, 2, 3, or 4 (with 1 as fastest and 4 as slower). (Using Hex Editing, you can make metatile spikes that can go up to speed 95.) Any character or monster that touches them in their "up" form will immediately die. They are known to go slightly slower than Electro Tiles and unlike them, these can hit UFOs.