Fast Leveling in Mighty X Arms
Since this is a genuinely new, small release, don't expect extensive third-party guides yet -- the free-form, run-based structure rewards learning through play, similar to other Brotato-inspired survivors.
Since Girg Souls are the core currency for both leveling up Arms and purchasing shop items, decide early in a run whether you're prioritizing immediate power spikes or saving toward a specific shop purchase -- spreading currency too thin across both is a common early mistake in Brotato-style survivors generally.
With 4 difficulty levels confirmed per chapter, start on an easier setting within each new chapter to learn its specific Girg patterns before pushing into harder difficulties.
See the full data: Mighty X Arms Getting Started