Touhou Mahoujou: Book of Star Mythology

Touhou Project fangame developed by Maceknight and Raichu that originated as a Touhou styled music album, but was eventually made into a game. Gameplay revolves around collecting star items dropped from enemies, where more can be obtained by attacking enemies at close range.

Collecting star items increases the Magnitude gauge, which leads to higher point multipliers. Star items do many other things: they factor in gaining resource pieces, they increase the point item value, and gathering enough in a stage will trigger the stage boss's "Last word" spell card.