Evading the Killer
The killer is slightly faster than you, so you are going to have to lose him by being tricky. Killers will lose interest in you if you can duck out of their line of sight, so try to bend around lots of corners to lose them.
You may have also noticed that some walls have holes in them. You can jump through them to get to the other side, and the best part is that they are inaccessible to killers. However, keep in mind that it takes a few second to get through, and you can be hit during this time!