Null-Z's collection

[Filler]

Contrast could be improved by a bit, still. Also, using darker colours to help border colours and make them stand out helps, too.

[Null-Z]

Newest animation demonstrating how I intend to have Null move. the dash allows null to become temporarily invincible but he will have a pause where he can't do anything for a bit.  

as per the usual advice is appreciated for improving myself.

[Null-Z]

I've come up with a new sprite that I think looks better but I need some help with the color selection-


Which color selection look the best?