Graceful Danmaku Festival
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Could be interesting
Strengthen your character and defeat enemies! It is a bullet hell shmup that combines casualness and authenticity.
When it comes to vertical shmups, not everything is black and white. There's also some red!
Shoot 'em up/Bullet Hell game for mobile platforms (iOS/Android) by Tanoshimasu Co. Ltd
Experience heart-pumping arcade shooter action. Each combat presents a new challenge as you adapt to a different ship with a unique way to play. Dodge an onslaught of bullets, blast through enemies, and shapeshift your way to victory.
1NVADER is a one or two-player game played with one button, one laser, one 1NVADER, and one life. Play co-operatively, or competitively with a friend, or face the 1NVADER alone.
Indie bullet hell/STG game developed by Ichigo-Citron, based on the anime/manga series Rozen Maiden.
Bullet-hell shooter
KYM-tan Shoots Things is a shooter game, based on the website personification of the internet humor site KnowYourMeme.
Illvelo, also named Illmatic Envelope, is a vertical shmup initially released for the NAOMI arcade system by MileStone Inc. in 2008. It's mostly noticeable for its trippy level backgrounds, bizarre sound effects and wacky enemy visual designs.