I will jump on. Fully aware that these are only ideas, suggestions and to be taken as such. I do enjoy the game. Thanks, if that is appropriate.
Custom color when starting. I suppose a slider could do these.

• Body - Primary
• Body - Trim
• Sword

Chain Gun:

• 3-4 second stream of 1 pixels
• Deflection seems iffy to me. I would think if it is available it is initially sporadic or not able to target them like top tier with arrows currently.

Charger (enemy):

• Charges at you, then turns around. Classic enemy type.
• I know there was another enemy you showed that had blades in front. Might be what I am suggesting.

The Floor is Lava:

• Self Explanatory

Slide-Kick:

• Self Explanatory

Directional Block:

• Like with the swing, AWD plus another button (right click?) to block from different directions

Sword Thrust:

• Forward thrust motion. Not the overhead swing.

Aerial Enemies:

• Thought 1: Arm the clean up bot model.
• Thought 2: Swooping type.
• Also iffy considering what range a character has. Sword/ Bow

Bullet Time:

• I do like the sequence when killing the Mark 3 Swordsman
• Would be a option in menu to turn off/on
• Not fond of the idea as an ability, but could combine with block I guess.