Asteroids Graphic Glitch

If it's the sizes of the object that is being messed up, then IMO it's not likely to be a TL082 or 4016. When those chips go, you either get nothing, or all lines get distorted, or the picture shrinks.

Your issue seems more likely to be a digital issue. I would focus on cleaning the sockets with DeOxit (particularly the 2 vector ROMs at the top of the board), then looking at the counters and other chips mentioned earlier.
 
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