Amanda Bynes -- Arrives to Court ... with Platinum Wig

Amanda Bynes has just arrived to court to face a judge about her bong-throwing arrest in NYC last night ... sporting the same clothes and platinum blonde wig she was wearing last night.

Bynes was led into the courtroom in handcuffs ... after spending the night in jail ... and asked photogs not to shoot her as she tried to hide her face.

As we previously reported, Bynes was booked for marijuana possession, tampering with evidence and reckless endangerment after cops say she chucked a glass bong out of her apartment window.