Why has my existence until now been absent of the glory that is
Hagane? This game is beautiful 2D-side-scrolling-platforming-action-fighting-'em-upper. Your character turns on a dime and attacks as fast as you can press the hitting button. Lots of ground and air control as I will elaborate. Basic control (can be configured in Options):
Attack
You've got four weapons - sword, chain, kunai, bomb. Sword is fastest. Chain can be aimed upward, including in mid-air. Kunais and bombs come in limited quantity.
Jump
Everything involving the Jump button can be lengthened by holding the button, including how high you jump.
Pressing Jump while airborne results in a horizontal spin; once you begin descending after a jump, you can no longer spin. You can attack in mid-air after spinning. Spinning into a wall yields a wall-jump; hold to ricochet up parallel walls.
Pressing Jump while crouched yields a slide useful for travelling under bullets.
Pressing Down while airborne results in a downward kick that bounces off enemies. Be careful not to hold Down after spinning or you can plummet into enemy attacks or bullets.
Switch Weapon
Cycles through four weapons. Select button cycles opposite. Weapons can be switched while the game is paused.
Bomb
Kaboomo.
Dash/Backdash
The L and R buttons function as dashes. Your direction determines whether each button yields a forward or backward dash.
Holding forward dash yields a somersault.
Pressing Attack during a forward dash makes your character lunge forward and punch before retreating with an automatic backdash.
Pressing Jump during a forward dash performs a flying kick.
Backward dash is faster than forward dash, making it more useful to turn around and hold a backward dash than try to tap forward dash and not accidentally get somersault in between.
Somersault
Holding forward dash yields first a blue somersault; continuing to hold yields a yellow somersault.
Pressing Attack during a blue somersault performs an arching spin attack.
Pressing Attack during a yellow somersault yields a powerful explosion in close proximity.
Pressing Jump during a blue somersault performs a more powerful flying kick.
Pressing Jump during a yellow somersault performs a more powerful plummeting kick.
This is what I know from playing the first level of the game. Power-ups and HUD are easy to understand. There is a timer. Excluding both miniboss segments of Stage 1-1, you can backdash past every enemy. Now, go play this shit.