Play Chester Field - Ankoku Shin heno Chousen (Japan) (Beta) Online

Chester Field: Ankoku Shin heno Chousen is an unreleased beta for the Nintendo Entertainment System, developed by a team whose identity remains largely undocumented. It exists as a curious artifact from the late NES era, a period when developers were pushing the hardware with more complex action and exploration titles. This particular game was never officially published, leaving only prototype cartridges and ROMs for dedicated collectors and emulator users to discover.

You control a warrior navigating a series of side scrolling stages and top down dungeons filled with monsters and environmental traps. The main objective is to progress through each area, defeat bosses, and gather key items to advance. Signature mechanics include screen by screen exploration, using a sword for close combat against enemies, and searching for hidden switches to unlock new paths. The pacing is deliberate, and the difficulty is notably high, demanding precise jumps and careful enemy engagement. It feels like a tense, methodical struggle against a world designed to punish mistakes.