- Piercer II computer spike (3000)
- Intruder computer spike (4500)
- Piercer IV computer spike (6000)
- Spear V computer spike (7500)
- Lancer computer spike (9000)
- Impalement Forward computer spike (10500)
- Riddle Eight computer spike (12000)
- Honey Comb IX computer spike (13500)
- Tunneler computer spike (15000)