touhou lensed night sky kaseigai

Touhou Lensed Night Sky, Kaseigai is a nontraditional bullet hell that focuses on a fully modular loadout. The player's own attacks and special effects can be exchanged midway through runs as the situation demands, or simply for fun.

There are a lot of ways to approach the game, with three playable characters, four major difficulty options, and a myriad of challenges and difficulty-lowering options that can be enabled or disabled at will.

This tag implicates touhou (learn more).