Super-Hard-Rending-Engine-Driven-Razors are specially engineered to really hurt MOAB-Class Bloons.
~ BTD5 description
MOAB-SHREDR Spikes is the third upgrade for the Path 2 Spike Factory in BTD5. It costs $2550 on Easy, $3000 on Medium, $3240 on Hard and $3600 on Impoppable. It makes the spikes produced by th Spike Factory sharper and more dangerous to MOAB-Class bloons, specifically 4x damage against them. In BTD5, this also doubles the attack speed of the Spike Factory, but this upgrade will not increase attack speed in BTD6. In BTD6, however, the lack of increased attack speed is instead compensated with 5x damage to MOAB-class instead of 4x.
It deals 20 damage per pile (40 with Bigger Stacks). With Spike Storm, this weapon can be extremely strong against MOAB Class Bloons but its significantly less effective on regular Bloons.
Compared to Spiked Ball Factory and Spiked Mines that are more useful against regular bloons but very weak against MOABs, the MOAB-SHREDR Spikes is exact opposite. The bigger spike pile has strength comparable to 4 MOAB Maulers. Unlike its counterpart its advised to place it near the entrance to deal heavy damage very fast, there's not much point of stockpiling due to resulting children so its not recommended to be placed near the exit due to low pierce.