Why does my E.T. look and sound better than yours?

[Sol Cutter]

I am new to "collecting" for Atari.

I recently picked up a copy of E.T.

It looks and souands different from what i was expecting.

It has more colours and a better quality sound than what iv seen online.

I cant find any info on why.

Could it be a regional difference? Or a homebrew remake?

 

The E.T. letters at the intro are 3-D.

E.T. has whites in his eyes.

The land in the gameplay is brown instead of green.

And other colour differences.

The sound is also much better.

Any insight would be greatly appreciated.

 

Thank you