Nitrogen Rounds

6-3, Engine Room: 12 "in right room on top". In the shop after 6-3 (both sources agree): ₦400 per round (a pack of 12 is ₦4,800).

100 damage and freezes: a frozen enemy shatters to any hit. Bosses such as the Chainsaw Majini resist it. To switch types, combine the rounds with the Grenade Launcher: the rounds it had loaded come back to your inventory. It fires in a straight line (no arc): aim at the floor at the enemy's feet.

₦40 per round. One guide places it in 5-3 but describes the 6-3 Engine Room; three sources say 6-3.