Katsu Boy Bullet Hell (alpha)

A カミマKAMI✪MART original, playable right here in your browser.

Click the game once to give it keyboard focus and turn the sound on. It is a big download — around 53 MB — so the first load takes a minute.

Controls

MoveW A S D
Fire (hold)Space
Focus — slow, shows your hitboxShift
Confirm / continueSpace
Restart the stageR
Back to the titleEsc

Stand still to throw shurikens in a spiral. Move to swing the sword, which fires straight up, costs nothing and wins your ammo back. A gamepad works too.

Five stages

1Frogoblinit will not stop moving
2Snowmancold open
3The Twinstwo Kamijacks, out of step
4Spaghettifour phases, and it speeds up
5All At Onceevery boss in the room together

Every boss turns up on every difficulty — the setting changes how hard the fight is, not what you get to see.

Difficulty

EasySlower bullets. Learn the spirals.
NormalThe intended fight.
HardFaster, denser, tougher bosses.
LunaticEvery boss brings a phase-offset double.
PsychosisTwo doubles each. Good luck.

High Scores

Loading scores…

About the game

A boss rush. Every pattern in the game comes from one idea: each boss rotates the angle it fires at by a fixed step every shot, so a single number is the difference between a slow sweep and a wall of spirals.

Hold Focus to slow down and see the tiny square that is your actual hitbox — most of what looks like a hit is not one. Shurikens knock enemy bullets out of the air, so the spiral is a shield as much as a weapon.

A finished run posts to the board for the difficulty it was played on. Score is how far you got first and how quickly second, so clearing more stages always outranks a faster shorter run. Walking away from a game over posts what you managed; retrying the stage keeps the run and its clock going.

Still an alpha: there is no pause menu or volume control yet. It started as the build posted on itch.io.

Support Development

Both games here are early builds — playable demos rather than finished things. If you want to see them get further, and see what comes after them, this is where that happens.

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Or just grab a game: KAMI✪MART on itch.io.