The answer to this question largely depends on whether the game has been developed so far and how complex this game is. There are competitions in which teams of 3 or 4 people complete the game (design, graphics, sound, game and all) during the (sleepless) weekend. At this point, they are usually not very complicated, but they, in any case, are a full-fledged game.
On the other hand, the people participating in these competitions are mostly people who know what they are doing. They have someone dedicated to sound, someone dedicated to graphics, and at least one person dedicated to programming. If you have little idea what you are doing with any of them (either due to lack of design or lack of experience), then this adds time, and this time can be significant.
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