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Planetoid B-4 is a location in Blaster Master Zero 2. It is the fourth planetoid in Area B.

General Information[]

Planetoid B-4 is unlocked after obtaining Planetoid Map B-4 on Planet Montoj. Planetoid B-4 consists of two rooms. The first room only features the Landing Point. The second room features various mutants, as well as uneven terrain, with much of the ground, walls, and ceilings covered in spikes. There are various platforms that serve as safe spaces, and the player will have to carefully hover through the spikes to make it to the end, where the player can obtain the Impact Wave Sub-weapon.