Your question is not super clear so I will provide a few answers, one should apply to what you are looking for:
1.) Console Access - Your console can be accessed via the control panel by clicking on your droplet, then on Access while your droplet is powered on.
2.) Recovery Kernel - A minimal recovery kernel that can be used to boot your droplet and run filesystem checks can be activated by powering off your droplet and clicking on Settings -> Kernel and then choosing the DO-recovery-static-fsck and then booting your droplet.
3.) Recovery ISO - A recovery ISO that will allow you to mount your filesystem, access your droplet remotely, perform filesystem checks and other tasks is available if necessary. To use this recovery environment you will need to open a ticket with the support team to request that they mount the image and boot your droplet to it. Once you are done with the Recovery ISO just update the support team and they can boot your droplet back to it’s disk image.