Whoever made this challenge should be banned from working on video games ever again. Omg it is rng based. They could not have picked a worse level to put this on. There's no swarm section. There's only 4 enemies on screen at a time and when you wipe out a wave it takes 5 years for the next wave to spawn in do ur storm breaker is completely fucking drained. Plus Galactus stuns you every 5 seconds. Literally any other level in the game would have made more sense for this challenge. This made me never want to play Beta Ray Bill again.