Suggestion: Replace the "NG" metasprite

[Blaziken257]

When a Medabot uses a move that cannot be used (e.g. due to a broken part), an NG metasprite appears. This is apparently a Japanese-made abbreviation for “No good” (basically the opposite of OK), according to some sources (examples below):

• https://en.wikipedia.org/wiki/List_of_Japanese_Latin_alphabetic_abbreviations#N
• https://ell.stackexchange.com/questions/147040/is-ng-no-good-correct-english

But this acronym isn’t generally used in native English, so the abbreviation is likely to confuse people (even if the full term is acceptable).

Possible suggestions that have been brought up:

• Thumbs-down metasprite (either 8x8, 16x8, or 16x16)
• X
• “FAIL”
• “NO”
• “No go”
• “MISS!!” (based on Metabots: Metabee/Rokusho aka Medarot 2 Core) or perhaps “MISS”
• Leave it as-is