He is three buttons, and that's absolutely not an issue at all.
The sprites are very well done, though it could do well with a taunt and more winposes. Lack of voices is also an issue IMO (even though I know all Dragon Quest heroes are silent), but other than that this character is really good.
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On another note, why the author didn't just called him Erdrick or Loto, since those are his official names?