NSF checks (Non Sufficient Funds), also referred as a bounced check are considered bad and will end up on your credit report — lowering your FICO Score and preventing you from obtaining credit.
About How to Boost Your FICO Score
Good Credit Scores takes patience and persistence and there are quite a few ways to legitimately give your score a boost when needed. Over the long haul, you'll be rewarded with a solid FICO Score.