Currently I have a BSc degree in Computer Science, and in the future I plan to get a Master degree in Computer Science. In my opinion, my BSc grades are good enough to help me be accepted at good universities in my country.

Also I'm considering doing a second BSc degree (in Electrical or Mechatronics Engineering), but I don't think I'll have enough time to study in order to get very good grades.

Could this ruin my academic record? Would it lower my chances of being accepted in a Master's course in the area of Computer Science?