The first game you ever completed

[Yawackhary]

For years I keep thinking it was Bugs Bunny: Lost in Time (since most of the time cheated on a game due to poor skill, that game was one of the exceptions at the time) but now I actually wonder if that was the first game that I completed...

It could have been Super Mario Land 2, it could have been Cruis'n USA in the arcade or something completely else.