東方紅魔郷 ～ the Embodiment of Scarlet Devil

This is 6th Touhou game made by ZUN and actually the first game for windows OS. The game takes place in Gensokyo. The story revolves around the appearance of a thick red mist, that has covered the land and blocked out the sun. Playing as either Reimu Hakurei (a shrine maiden) or Marisa Kirisame (a playful magician), you must battle your way through 6 difficult stages toward the source of the red mist, and face the “Scarlet Devil” behind it all.
Automatic collection could be performed if you are in full power mode.
Requirement: Pentium 500MHz, 320MB hard disk, Direct3D, DirectX 8, 4MB VRAM, DirectSound, 32MB RAM

click here to view full sized picture

Boss/MidBoss characters in EoSD:
Stage 1 Boss : Rumia
Stage 2 MidBoss: Daiyousei
Stage 2 Boss: Cirno
Stage 3 Boss: Hong Meirin
Stage 4 MidBoss : Koumakyou
Stage 4 Boss : Pachouli Knowledge
Stage 5 Boss : Sakuya Izayoi
Stage 6 Boss: Remilia Scarlet
Stage EX Boss: Flandre Scarlet

English Patch – click here
you must upgrade your game to ver1.02h

External link (I NOT THE UPLOADER)

Source:
ZUN’s site
Touhou Wiki