I love Burger Time, I have played quite a lot of the 7800 version (Beef Drop) which he appears to playing on emulation with the speed set wrong. It's definately the best of the versions shown too, although I was impressed with the Coleco Vision port.I have the 2600 version too but I really don't remember it being that poor, it looks almost unplayable!!!
Can't say i have ever played this game..
Just do not try the 2600 version first.
The 2600 version is still on my want list. Knowing how bad it is I just do not want to pay much for a copy. So maybe I will never own one.