Battle Kid: Fortress of Peril - NES

550 Rooms. 8 Bosses. One Hit and You're Dead.

Battle Kid: Fortress of Peril is a modern NES homebrew that pulls no punches. Inspired by I Wanna Be the Guy and classic platformers, it follows the Metroidvania style — one massive interconnected fortress to freely explore, no stages, no hand-holding. You always die in one hit, but unlimited continues on normal difficulty and a password system keep the frustration fair.

What Awaits You

• Over 550 rooms to explore across one massive fortress
• 8 bosses standing between you and survival
• 30+ different enemy types
• Items that unlock new abilities — higher jumps, slower falling, and more
• Unlimited continues on normal difficulty + password system to save progress

Product Details

• Platform: Nintendo Entertainment System (NES)
• Condition: Loose Cartridge — cartridge only, no box or manual
• Modern NES homebrew — Metroidvania-style exploration
• Compatible with original NES (toaster & top loader), Retron HD, Retron 1/2/3, Retro Trio, Retro Bit, and other quality hardware clones
• ⚠️ Not compatible with Mattel NES, Retron 5, or Retro Freak (Android emulators)
• Ships from the US

Can you survive the perils that lie ahead? Only one way to find out.